diff --git a/app/src/components/connect/AddSession.tsx b/app/src/components/connect/AddSession.tsx
index 7980027f5..874aaef4b 100644
--- a/app/src/components/connect/AddSession.tsx
+++ b/app/src/components/connect/AddSession.tsx
@@ -8,6 +8,7 @@ import FormField from 'components/common/FormField';
 import FormInput from 'components/common/FormInput';
 import FormSelect from 'components/common/FormSelect';
 import PurpleButton from './PurpleButton';
+import { PermissionTypeValues } from 'store/views/addSessionView';
 
 const Styled = {
   Wrapper: styled.div``,
@@ -50,6 +51,14 @@ const AddSession: React.FC<Props> = ({ primary }) => {
     );
   }
 
+  const validatePermissionType = (v: string) => {
+    const permissionType = Object.values(PermissionTypeValues).find(value => value === v);
+
+    if (!permissionType) return;
+
+    addSessionView.setPermissionType(permissionType);
+  };
+
   return (
     <Wrapper>
       <Row>
@@ -74,18 +83,18 @@ const AddSession: React.FC<Props> = ({ primary }) => {
           <FormField>
             <FormSelect
               value={addSessionView.permissionType}
-              onChange={addSessionView.setPermissionType}
+              onChange={validatePermissionType}
               options={[
-                { label: l('admin'), value: 'admin' },
-                { label: l('readonly'), value: 'read-only' },
-                { label: l('custom'), value: 'custom' },
+                { label: l('admin'), value: PermissionTypeValues.Admin },
+                { label: l('readonly'), value: PermissionTypeValues.ReadOnly },
+                { label: l('custom'), value: PermissionTypeValues.Custom },
               ]}
             />
           </FormField>
         </Column>
         <Column>
           <PurpleButton onClick={addSessionView.handleSubmit}>
-            {addSessionView.permissionType === 'custom'
+            {addSessionView.permissionType === PermissionTypeValues.Custom
               ? l('common.next')
               : l('common.submit')}
           </PurpleButton>
diff --git a/app/src/components/connect/CustomSessionPage.tsx b/app/src/components/connect/CustomSessionPage.tsx
index 973387ce2..c17864495 100644
--- a/app/src/components/connect/CustomSessionPage.tsx
+++ b/app/src/components/connect/CustomSessionPage.tsx
@@ -14,6 +14,7 @@ import FormSelect from 'components/common/FormSelect';
 import FormDate from 'components/common/FormDate';
 import FormSwitch from 'components/common/v2/FormSwitch';
 import PurpleButton from './PurpleButton';
+import { PermissionTypeValues } from 'store/views/addSessionView';
 
 const Styled = {
   Wrapper: styled.div`
@@ -108,7 +109,7 @@ const CustomSessionPage: React.FC = () => {
     addSessionView.handleCustomSubmit();
   }, []);
 
-  const setPermissionType = (permissionType: string) => {
+  const setPermissionType = (permissionType: PermissionTypeValues) => {
     return () => {
       addSessionView.setPermissionType(permissionType);
     };
@@ -175,48 +176,62 @@ const CustomSessionPage: React.FC = () => {
 
               <PermissionTypes>
                 <PermissionType
-                  active={addSessionView.permissionType === 'admin'}
-                  onClick={setPermissionType('admin')}
+                  active={addSessionView.permissionType === PermissionTypeValues.Admin}
+                  onClick={setPermissionType(PermissionTypeValues.Admin)}
                 >
                   <Paragraph bold>{l('admin')}</Paragraph>
                   <Small>{l('adminDesc')}</Small>
                 </PermissionType>
 
                 <PermissionType
-                  active={addSessionView.permissionType === 'read-only'}
-                  onClick={setPermissionType('read-only')}
+                  active={addSessionView.permissionType === PermissionTypeValues.ReadOnly}
+                  onClick={setPermissionType(PermissionTypeValues.ReadOnly)}
                 >
                   <Paragraph bold>{l('readonly')}</Paragraph>
                   <Small>{l('readonlyDesc')}</Small>
                 </PermissionType>
 
                 <PermissionType
-                  active={addSessionView.permissionType === 'liquidity'}
-                  onClick={setPermissionType('liquidity')}
+                  active={
+                    addSessionView.permissionType === PermissionTypeValues.Liquidity
+                  }
+                  onClick={setPermissionType(PermissionTypeValues.Liquidity)}
                 >
                   <Paragraph bold>{l('liquidity')}</Paragraph>
                   <Small>{l('liquidityDesc')}</Small>
                 </PermissionType>
 
                 <PermissionType
-                  active={addSessionView.permissionType === 'payments'}
-                  onClick={setPermissionType('payments')}
+                  active={addSessionView.permissionType === PermissionTypeValues.Payments}
+                  onClick={setPermissionType(PermissionTypeValues.Payments)}
                 >
                   <Paragraph bold>{l('payments')}</Paragraph>
                   <Small>{l('paymentsDesc')}</Small>
                 </PermissionType>
 
                 <PermissionType
-                  active={addSessionView.permissionType === 'custodial'}
-                  onClick={setPermissionType('custodial')}
+                  active={
+                    addSessionView.permissionType === PermissionTypeValues.Messenger
+                  }
+                  onClick={setPermissionType(PermissionTypeValues.Messenger)}
+                >
+                  <Paragraph bold>{l('messenger')}</Paragraph>
+                  <Small>{l('messengerDesc')}</Small>
+                </PermissionType>
+
+                <PermissionType
+                  active={
+                    addSessionView.permissionType === PermissionTypeValues.Custodial
+                  }
+                  onClick={setPermissionType(PermissionTypeValues.Custodial)}
                 >
                   <Paragraph bold>{l('custodial')}</Paragraph>
                   <Small>{l('custodialDesc')}</Small>
                 </PermissionType>
 
                 <PermissionType
-                  active={addSessionView.permissionType === 'custom'}
-                  onClick={setPermissionType('custom')}
+                  active={addSessionView.permissionType === PermissionTypeValues.Custom}
+                  onClick={setPermissionType(PermissionTypeValues.Custom)}
                 >
                   <Paragraph bold>{l('custom')}</Paragraph>
                   <Small>{l('customDesc')}</Small>
@@ -228,7 +243,7 @@ const CustomSessionPage: React.FC = () => {
               <Label semiBold>Permissions</Label>
 
               <Permissions>
-                {addSessionView.permissionType === 'custodial' && (
+                {addSessionView.permissionType === PermissionTypeValues.Custodial && (
                   <FormField>
                     <Label semiBold space={8}>
                       {l('addBalance')}
@@ -335,6 +350,18 @@ const CustomSessionPage: React.FC = () => {
                     onChange={togglePermission('receive')}
                   />
                 </Permission>
+
+                <Permission>
+                  <div>
+                    <Paragraph bold>{l('permSign')}</Paragraph>
+                    <Small>{l('permSignDesc')}</Small>
+                  </div>
+
+                  <FormSwitch
+                    checked={addSessionView.permissions.sign}
+                    onChange={togglePermission('sign')}
+                  />
+                </Permission>
               </Permissions>
             </Column>
           </Row>
diff --git a/app/src/i18n/locales/en-US.json b/app/src/i18n/locales/en-US.json
index 55a8f0092..78ac05ee1 100644
--- a/app/src/i18n/locales/en-US.json
+++ b/app/src/i18n/locales/en-US.json
@@ -56,6 +56,8 @@
   "cmps.connect.CustomSessionPage.liquidityDesc": "User can only set fees, use Loop, and use Pool.",
   "cmps.connect.CustomSessionPage.payments": "Payments Manager",
   "cmps.connect.CustomSessionPage.paymentsDesc": "User can only send and receive payments.",
+  "cmps.connect.CustomSessionPage.messenger": "Keysend Messenger",
+  "cmps.connect.CustomSessionPage.messengerDesc": "User can send and receive payments plus sign messages.",
   "cmps.connect.CustomSessionPage.custodial": "Custodial Account",
   "cmps.connect.CustomSessionPage.custodialDesc": "Create a custodial off-chain account for your node.",
   "cmps.connect.CustomSessionPage.custom": "Custom",
@@ -78,6 +80,8 @@
   "cmps.connect.CustomSessionPage.permSendDesc": "Send funds from this node.",
   "cmps.connect.CustomSessionPage.permReceive": "Receive",
   "cmps.connect.CustomSessionPage.permReceiveDesc": "Receive funds on this node.",
+  "cmps.connect.CustomSessionPage.permSign": "Sign",
+  "cmps.connect.CustomSessionPage.permSignDesc": "Sign messages to verify node.",
   "cmps.connect.CustomSessionPage.advanced": "Advanced Options",
   "cmps.connect.CustomSessionPage.proxy": "Proxy Server",
   "cmps.connect.CustomSessionPage.proxyDesc": "Specify a custom Lightning Node Connect proxy server",
diff --git a/app/src/store/views/addSessionView.ts b/app/src/store/views/addSessionView.ts
index 86660276e..5cf0d08f6 100644
--- a/app/src/store/views/addSessionView.ts
+++ b/app/src/store/views/addSessionView.ts
@@ -3,11 +3,21 @@ import { Store } from 'store';
 import * as LIT from 'types/generated/lit-sessions_pb';
 import { MAX_DATE, PermissionUriMap } from 'util/constants';
 
+export enum PermissionTypeValues {
+  Admin = 'admin',
+  ReadOnly = 'read-only',
+  Liquidity = 'liquidity',
+  Payments = 'payments',
+  Messenger = 'messenger',
+  Custodial = 'custodial',
+  Custom = 'custom',
+}
+
 export default class AddSessionView {
   private _store: Store;
 
   label = '';
-  permissionType = 'admin'; // Expected values: admin | read-only | custodial | custom | liquidity | payments
+  permissionType: PermissionTypeValues = PermissionTypeValues.Admin;
   editing = false;
   permissions: { [key: string]: boolean } = {
     openChannel: false,
@@ -17,6 +27,7 @@ export default class AddSessionView {
     pool: false,
     send: false,
     receive: false,
+    sign: false,
   };
   expiration = 'never'; // Expected values: 7 | 30 | 60 | 90 | never | custom
   expirationOptions = [
@@ -49,11 +60,11 @@ export default class AddSessionView {
   //
 
   get sessionType() {
-    if (this.permissionType === 'admin') {
+    if (this.permissionType === PermissionTypeValues.Admin) {
       return LIT.SessionType.TYPE_MACAROON_ADMIN;
-    } else if (this.permissionType === 'read-only') {
+    } else if (this.permissionType === PermissionTypeValues.ReadOnly) {
       return LIT.SessionType.TYPE_MACAROON_READONLY;
-    } else if (this.permissionType === 'custodial') {
+    } else if (this.permissionType === PermissionTypeValues.Custodial) {
       return LIT.SessionType.TYPE_MACAROON_ACCOUNT;
     }
 
@@ -132,45 +143,52 @@ export default class AddSessionView {
     this.custodialBalance = balance;
   }
 
-  setPermissionType(permissionType: string) {
+  setPermissionType(permissionType: PermissionTypeValues) {
     this.permissionType = permissionType;
 
     switch (permissionType) {
-      case 'admin':
+      case PermissionTypeValues.Admin:
         this.setAllPermissions(true);
         break;
 
-      case 'read-only':
+      case PermissionTypeValues.ReadOnly:
         this.setAllPermissions(false);
         break;
 
-      case 'liquidity':
+      case PermissionTypeValues.Liquidity:
         this.setAllPermissions(false);
         this.permissions.setFees = true;
         this.permissions.loop = true;
         this.permissions.pool = true;
         break;
 
-      case 'payments':
+      case PermissionTypeValues.Payments:
+        this.setAllPermissions(false);
+        this.permissions.send = true;
+        this.permissions.receive = true;
+        break;
+
+      case PermissionTypeValues.Messenger:
         this.setAllPermissions(false);
         this.permissions.send = true;
         this.permissions.receive = true;
+        this.permissions.sign = true;
         break;
 
-      case 'custodial':
+      case PermissionTypeValues.Custodial:
         this.setAllPermissions(false);
         this.permissions.send = true;
         this.permissions.receive = true;
         break;
 
-      case 'custom':
+      case PermissionTypeValues.Custom:
         // We don't need to change anything, let the user customize permissions how they want
         break;
     }
   }
 
   togglePermission(permission: string) {
-    this.setPermissionType('custom');
+    this.setPermissionType(PermissionTypeValues.Custom);
     this.permissions[permission] = !this.permissions[permission];
   }
 
@@ -184,7 +202,7 @@ export default class AddSessionView {
 
   cancel() {
     this.label = '';
-    this.permissionType = 'admin';
+    this.permissionType = PermissionTypeValues.Admin;
     this.editing = false;
     this.setAllPermissions(false);
     this.expiration = 'never';
@@ -197,7 +215,7 @@ export default class AddSessionView {
   //
 
   async handleSubmit() {
-    if (this.permissionType === 'custom') {
+    if (this.permissionType === PermissionTypeValues.Custom) {
       this._store.settingsStore.sidebarVisible = false;
       this._store.router.push('/connect/custom');
     } else {
@@ -223,7 +241,7 @@ export default class AddSessionView {
       label = `My ${this.permissionType} session`;
     }
 
-    if (this.permissionType === 'custodial') {
+    if (this.permissionType === PermissionTypeValues.Custodial) {
       const custodialAccountId = await this.registerCustodialAccount();
 
       // Return immediately to prevent a session being created when there is an error creating the custodial account
diff --git a/app/src/util/constants.ts b/app/src/util/constants.ts
index ae5a7a965..0b9ce3c03 100644
--- a/app/src/util/constants.ts
+++ b/app/src/util/constants.ts
@@ -116,4 +116,5 @@ export const PermissionUriMap: { [key: string]: string[] } = {
     '/lnrpc.Lightning/ListInvoices',
     '/lnrpc.Lightning/SubscribeInvoices',
   ],
+  sign: ['/lnrpc.Lightning/SignMessage'],
 };