{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342841",
    "entityType": "User",
    "nonce": "0x33e1b9c584ea6c23a07c20f4bb45989543cb230c2c2ba1eddfe264a7cea9d4fb",
    "signature": "0xece12884003271257647d6c39df40a9b4fa39a0b9b76c0f386d99df1b3589e40552ced8f20dae4804e6f8fb6b9d1f3f9caa433633bbd0df39a876af4888d821f1c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}