{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x73cabd5a4b180c0fe890c849dc90b19ae96c7809c54b03b6733175ea8ff31431",
    "signature": "0x3e8acf10d6e449576ac09a8ef063f384a0051daf05f6399b1afad962179d51a22b2985847f4a2e88a0d13423e54fef62527ceb8d75f1498f066a37c438435ca51c",
    "signer": "0xeB434A92095290c9fdA908bfb04b42aB7E91b6b5",
    "userId": "992606059"
  }
}