{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf0ebc84999b98a186a59d36f8bbcd501869357e0657759e1f812f282154af709",
    "signature": "0x9d3430a00fa103e1e422a60abe682a55eb9e5997f8a75e3908a6c34454c4a9f714a2d5835dd10c3d66d7d87cb52c54d2cd212e2923d472c0128c7e65b31962ae1c",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}