{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xd2ff49e62241fd7f82820c2971fe8361f7e5e9a1901228bc5051a301cf816a18",
    "signature": "0x1a880c24274e7e19b18308ea890e69b5ed4cbeaebd45f8742b45cc058dbdb14c5af950ec482bb28218e2874aed0599e422526dde60c5412318edfec2b36998a51b",
    "signer": "0xAEc4BA229696a4DAe2125cD32943943AaCa0CaF4",
    "userId": "354024696"
  }
}