{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1612",
    "entityType": "User",
    "nonce": "0x4382cfbd435789484008d58242b0d17b81a366e3ab118f350521de3196ecfdc8",
    "signature": "0xcbcadb1718964e5ccc505db5b64408d9ceb777b7a70979a2ee61376c287c261f7687a869fdc1a5ac78de35e71d0e9cbe5966d67224a143f8eee26c42fe4862d91c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}