{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1887966",
    "entityType": "User",
    "nonce": "0x335ad2a8223c94fff71525a9794d82b95b723941dfd00a5563cbf2575eaa5af9",
    "signature": "0xf7065182a42d6986b17e0121f79d80efbf87f6d6f09a326b122cdba2aaea0b6d371dd9cc3eb90260a395cdbdf7da2e081dccb6cece0546c58ed7bd5bdbb4f1651c",
    "signer": "0x9c3860443A17b3326308E6E90E9cA7835460e0b0",
    "userId": "898210232"
  }
}