{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x694eb019e8ad351d893400a526bb0b6823a0213a3ec865d2d653da89323a2fa2",
    "signature": "0x75c0bef6d92b8445ed5253ee8bd64a7128298b947f5463817d01e213bd24da5e43991daae2b4b950adf098a9a274fb67c1b446506238b14ce079113b8309f0a41b",
    "signer": "0xE8Cc4bA5Ac60eF4361589B963ED2acBe161c3e3D",
    "userId": "184690472"
  }
}