{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "551997732",
    "entityType": "User",
    "nonce": "0x322114bf2a50b9d00c0ab4eef5cb89f156533e8da9bf6a071439abf18ff2010c",
    "signature": "0x36ef98966f35df2cded65f1ec18b66a485cfced1048070e8e856f1bc6227a1225462036f837a7e4b0262de38f95a23eb55c1d470611665e37ed645d5c7a6fab51c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}