{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x99e44887ea7f0afad8ae817757ad87b691c2df31a77df1b70fb66a3e5ebed5fc",
    "signature": "0xd87cff9d139b9f0f81d67d81e9e1bb70dec434c72b8b56d5348daec7c8c403c4284131116bef2926422b4ef0cce7fbd1ed83623f2ce84ca58622ab85a3d41d2b1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}