Can you point where Signal uses proprietary blobs? Also, I'm using Signal without the play services notifications just fine. Notifications that don't contain an

Can you point where Signal uses proprietary blobs? Also, I'm using Signal without the play services notifications just fine. Notifications that don't contain any message content while transiting anyway. The display of the notification was the issue with iOS bug and that would have affected molly as well (if it was on iOS).