{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16564",
    "entityType": "User",
    "nonce": "0xebe93d2677c7c84075ddbaeba6e283a7e6629e5976d0b46e57eb59feff62a8a7",
    "signature": "0x66b7c87cf7e34f26985cff39a3aa049cf84d389d8ace8da1af6ae9b21679d824505a73e7c0982aa1375b6d485abd9695e7ebf89f95577aa16d9ac3e1cefd87e61b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}