update notification

example/lib/main.dart

@@ -28,6 +28,7 @@ void main() async {
     showLocalNotification:
         (!kIsWeb && Platform.isAndroid) ? showLocalNotification : null,
     persistenceEnabled: true,
+    backgroundKeepAlive: Duration(seconds: 3),
   );
 
   if (userId != null) {

example/lib/notifications_service.dart

@@ -33,7 +33,8 @@ void showLocalNotification(Message message, ChannelModel channel) async {
 }
 
 Future backgroundHandler(Map<String, dynamic> notification) async {
-  final messageId = notification['data']['message_id'];
+  print('new notification ${notification}');
+  final messageId = notification['data']['id'];
 
   final notificationData =
       await NotificationService.getAndStoreMessage(messageId);