{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0ef6a5883f1d0d2733252eef4c1e60e5ac8391ee03377bfe8f09d0120e6ef3b7",
    "signature": "0x2abb1ebe2a9b7c8a96c7436197a0864f64f1ecd34cf187622dea631437b3718122ca5616bddaab737390fc2bc6ead38bb3580d1ecb17577b8c78342378adeb351b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}