{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318582",
    "entityType": "User",
    "nonce": "0xd2aef960fa09d8e4a1fe0561875f17db0a07471eeb42ec0cabcb3fcc595f1dca",
    "signature": "0xe3d23d8fc31a596066a2c34a3130567bab2ec879df5042ce83d1e83c83c837477101afaabedba3430b6747bcdccc69b089ffa404609e18a13a395f48a055eaa91b",
    "signer": "0x8e57c7C677d2249437F4bEb640d7aEBAa88b9C12",
    "userId": "230723724"
  }
}