{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398",
    "entityType": "User",
    "nonce": "0x231939e147a57defd08274a6d4b7a50e468f98142ab35d683560925d0faba262",
    "signature": "0xcb56becc783d70a7d730a2167ae6358e8c4592520fe9b4021468529bee24ae3e0fc44105b35cd42d6789f66465cb31ec25a60001dd7b8b6012091f2f76f39fed1c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}