{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "685453",
    "entityType": "User",
    "nonce": "0xf7dbfaa4d7793ac64200d715ae854e623df36b7c178bed72daea3535183807e6",
    "signature": "0x3d2d830de0bbb6584110cf26c89c828ecd6481085471d9725f08dd32c44b0ce318e754ddbfebfdae9467f03c3a8fe93861917fc7658bdf3aa670f35ad7bde5ab1b",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}