Add id

Signed-off-by: Mario Danic <mario@lovelyhq.com>

app/src/main/java/com/nextcloud/talk/api/models/json/push/DecryptedPushMessage.java

@@ -39,4 +39,7 @@ public class DecryptedPushMessage {
 
     @JsonField(name = "subject")
     String subject;
+
+    @JsonField(name = "id")
+    String id;
 }