{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x6ee93eab393259732170925beca34655ec6dd43889e0a2d1840e31e7ae6684cc",
    "signature": "0x1827ad88e186f2856f5459cba232f70070e4eac90c3d2c621a2273492a65b174413f84702f274b5ac461bdc20cf8b22ec49e1626781f237c885b619cfd9420251b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}