{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xa4dd92bafe368c3f5e5050fd5e11d007fe06bf710ef6be0599e1ffc88e219020",
    "signature": "0x34ec0e65e1d7644be1e39e38406cabd692723ef5cf86f4971a69c56aa50f71c81a312283eda92312bea05a3b0b2ce29d3d7872d036a5c026ac5d5a58c898876e1b",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}