{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0ee538ad6825e94501744dba8bf0767cab4a71a1bd16786b7ff52f5fd94ae71a",
    "signature": "0xb3d9e909b9af9e2d9e031ff365b8221f74666a0f08d8bdc264718034cf3ffcfe023d18c85e076663ffeb8543def91d0379d0ca9e56ae809199715c4ce4759ca71b",
    "signer": "0x1ACb7Dc5984663e6f64B9a24c778e6bC3a58819b",
    "userId": "656174174"
  }
}