diff --git a/services/identity/src/tunnelbroker.rs b/services/identity/src/tunnelbroker.rs
--- a/services/identity/src/tunnelbroker.rs
+++ b/services/identity/src/tunnelbroker.rs
@@ -50,3 +50,23 @@
       .await?,
   )
 }
+
+pub async fn send_device_list_update(
+  device_id: &str,
+) -> Result<Response<Empty>, Error> {
+  let mut tunnelbroker_client = create_tunnelbroker_client().await?;
+
+  let update = messages::IdentityDeviceListUpdated {};
+  let payload = serde_json::to_string(&update).unwrap();
+  let request = MessageToDevice {
+    device_id: device_id.to_string(),
+    payload,
+  };
+
+  let grpc_message = tonic::Request::new(request);
+  Ok(
+    tunnelbroker_client
+      .send_message_to_device(grpc_message)
+      .await?,
+  )
+}