diff --git a/lib/types/tunnelbroker/notif-types.js b/lib/types/tunnelbroker/notif-types.js
--- a/lib/types/tunnelbroker/notif-types.js
+++ b/lib/types/tunnelbroker/notif-types.js
@@ -15,3 +15,15 @@
   +data: string,
   +priority: 'NORMAL' | 'HIGH',
 };
+
+export type TunnelbrokerWebPushNotif = {
+  +type: 'WebPushNotif',
+  +clientMessageID: string,
+  +deviceID: string,
+  +payload: string,
+};
+
+export type TunnelbrokerNotif =
+  | TunnelbrokerAPNsNotif
+  | TunnelbrokerFCMNotif
+  | TunnelbrokerWebPushNotif;
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
@@ -43,6 +43,7 @@
   AnonymousInitializationMessage(AnonymousInitializationMessage),
   APNsNotif(APNsNotif),
   FCMNotif(FCMNotif),
+  WebPushNotif(WebPushNotif),
   MessageToDeviceRequest(MessageToDeviceRequest),
   MessageReceiveConfirmation(MessageReceiveConfirmation),
   MessageToTunnelbrokerRequest(MessageToTunnelbrokerRequest),
diff --git a/shared/tunnelbroker_messages/src/messages/notif.rs b/shared/tunnelbroker_messages/src/messages/notif.rs
--- a/shared/tunnelbroker_messages/src/messages/notif.rs
+++ b/shared/tunnelbroker_messages/src/messages/notif.rs
@@ -23,3 +23,14 @@
   pub data: String,
   pub priority: String,
 }
+
+/// WebPush notif built on client.
+#[derive(Serialize, Deserialize, PartialEq, Debug)]
+#[serde(tag = "type", rename_all = "camelCase")]
+pub struct WebPushNotif {
+  #[serde(rename = "clientMessageID")]
+  pub client_message_id: String,
+  #[serde(rename = "deviceID")]
+  pub device_id: String,
+  pub payload: String,
+}