{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc9444e3da9910c9dfb2b5159a727299d62ad71b4fcaf340f4ce79afb1460652f",
    "signature": "0x052a016dd607b3715e3ad4227bb6841706a4b2abf6a15a2919d231df9cab8eef774ed7bf575f11beeea08c9a73e4c129e517d220ad079c649a372635fbe15bf91c",
    "signer": "0x634e310f6a44FD08bDfE077Ed82A86a2cEA736C1",
    "userId": "268475197"
  }
}