diff --git a/lib/types/tunnelbroker/peer-to-peer-message-types.js b/lib/types/tunnelbroker/peer-to-peer-message-types.js
--- a/lib/types/tunnelbroker/peer-to-peer-message-types.js
+++ b/lib/types/tunnelbroker/peer-to-peer-message-types.js
@@ -26,6 +26,7 @@
   QR_CODE_AUTH_MESSAGE: 'QRCodeAuthMessage',
   DEVICE_LIST_UPDATED: 'DeviceListUpdated',
   MESSAGE_PROCESSED: 'MessageProcessed',
+  IDENTITY_DEVICE_LIST_UPDATED: 'IdentityDeviceListUpdated',
 });
 
 export type OutboundSessionCreation = {
@@ -100,13 +101,22 @@
     deviceID: t.String,
   });
 
+export type IdentityDeviceListUpdated = {
+  +type: 'IdentityDeviceListUpdated',
+};
+export const identityDeviceListUpdatedValidator: TInterface<IdentityDeviceListUpdated> =
+  tShape<IdentityDeviceListUpdated>({
+    type: tString(peerToPeerMessageTypes.IDENTITY_DEVICE_LIST_UPDATED),
+  });
+
 export type PeerToPeerMessage =
   | OutboundSessionCreation
   | EncryptedMessage
   | RefreshKeyRequest
   | QRCodeAuthMessage
   | DeviceListUpdated
-  | MessageProcessed;
+  | MessageProcessed
+  | IdentityDeviceListUpdated;
 
 export const peerToPeerMessageValidator: TUnion<PeerToPeerMessage> = t.union([
   outboundSessionCreationValidator,
@@ -115,4 +125,5 @@
   qrCodeAuthMessageValidator,
   deviceListUpdatedValidator,
   messageProcessedValidator,
+  identityDeviceListUpdatedValidator,
 ]);
diff --git a/shared/tunnelbroker_messages/src/messages/device_list_updated.rs b/shared/tunnelbroker_messages/src/messages/device_list_updated.rs
new file mode 100644
--- /dev/null
+++ b/shared/tunnelbroker_messages/src/messages/device_list_updated.rs
@@ -0,0 +1,7 @@
+//! Messages sent from Identity to device informing that device list was updated.
+
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize, PartialEq, Debug)]
+#[serde(tag = "type", rename_all = "camelCase")]
+pub struct IdentityDeviceListUpdated {}
diff --git a/shared/tunnelbroker_messages/src/messages/mod.rs b/shared/tunnelbroker_messages/src/messages/mod.rs
--- a/shared/tunnelbroker_messages/src/messages/mod.rs
+++ b/shared/tunnelbroker_messages/src/messages/mod.rs
@@ -1,5 +1,6 @@
 //! Messages sent between Tunnelbroker and a device.
 
+pub mod device_list_updated;
 pub mod keys;
 pub mod message_receive_confirmation;
 pub mod message_to_device;
@@ -7,6 +8,7 @@
 pub mod message_to_device_request_status;
 pub mod session;
 
+pub use device_list_updated::*;
 pub use keys::*;
 pub use message_receive_confirmation::*;
 pub use message_to_device::*;
@@ -41,10 +43,12 @@
   MessageToDevice(MessageToDevice),
   MessageReceiveConfirmation(MessageReceiveConfirmation),
   Heartbeat(Heartbeat),
+  IdentityDeviceListUpdated(IdentityDeviceListUpdated),
 }
 
 #[derive(Serialize, Deserialize, Debug)]
 #[serde(untagged)]
 pub enum PeerToPeerMessages {
   RefreshKeysRequest(RefreshKeyRequest),
+  IdentityDeviceListUpdated(IdentityDeviceListUpdated),
 }