Modify `send.js` file so that it:
1. Uses function introduced in the parent differential to AES-encrypt and upload plaintext notification payload on Android. Make sure that notification text is large (4000 characters)
2. Sends to the devices notification that contains, blob hash, aes key and has different (very short) text.
3. If the blob service is running the user should see the original notification payload displayed.
4. If the blob service is not running the user should see the short text (fallback text).