{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "480682309",
    "entityType": "User",
    "nonce": "0x22f0221e0e7182456c345f9af5b48427ccc3522e77370ce5dc3e963efc758db6",
    "signature": "0x6dc2b99f48103d7d42442430154d47623e6245f381bfc11a227cccbe19c689b41e4a6adde301d44cb3d42912e53db963815e89b6c24febca05f9a697868346f31b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}