{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xecc63756132d75575087a0d53cd249e7401cb60b93e67640bc14eecb89e46d69",
    "signature": "0x3fb61d256193bf943395b5b37f815010088a5a610522bf646516e19f0bb914a471df7a132fce8888fca0204c9f1c839004e72d307da02002b2982a7d4ce4a7071c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}