{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "717798806",
    "entityType": "User",
    "nonce": "0x69e3d901fe51e4d5908f363454018e752f062ea53147e8978c319d2d9bfbcc68",
    "signature": "0x3ea9bf8de8e6cd2e110db3ea1a3e42c085fde93368bb2a2d561358d4e0ce30d76c2dffb7be2d8f4abf7aef1092458552744e239c7be9941706968a72043765f31c",
    "signer": "0x72bB0dBD4F0c2040428c41f3581607C6b41e8353",
    "userId": "959678379"
  }
}