{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "808512351",
    "entityType": "User",
    "nonce": "0xb6822cf669d41101563106d321ec1866b1186094d6074e507902d40adb03c073",
    "signature": "0x470d904c998e741def3efd710ebf5dac4cc1d61724a9538f698e849424a8d3a022fd289bb7409a243c96be007ddb20c48fb03f04c09d2181c1496229753a2b0d1b",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}