{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311591173",
    "entityType": "User",
    "nonce": "0xa74f86c5e6b008b3e92df39d0c69133e76b682eb19f69d788fa1ac08e0b2c0db",
    "signature": "0x669bff912f1b747457006b37eb43af3dfebe7a39b21bef27a1d51b41648f6a0849288eb6b9a75cefc8b9f8f2f361e4b988211b70508dc886bc9549b9c8b9d1d61c",
    "signer": "0xAaC77705f5f6bd787D8581c36Ddaf7c0c7AE3370",
    "userId": "827420993"
  }
}