{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494113495",
    "entityType": "User",
    "nonce": "0x38d760511d6b486a284432818a23a85a7b026560c502e5f7b96aef259635b40e",
    "signature": "0xc7b29007ee08713ae83296de60e661f3db0f9dc25b18093faa32fccbd2ea01f203eedeaf12c872a525a773df78b9d79aef4126b5b8f52ecc6182bf00c92388431c",
    "signer": "0x3CE307cb27B2Fc2b03Eae311050CA4e8C34Fa57d",
    "userId": "50936"
  }
}