{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240421671",
    "entityType": "User",
    "nonce": "0x92477aa4ffc51940a3ff7c56d337c6006e6e56ff373b44defcd30d65a4471631",
    "signature": "0xa1f131e8d8274a0d04e1a01659b20d2f680aadbd13632779179a2803ed7ba01e4be4229d52c183636f0ca6742207828c64832d41ba72a305c7edd2f900b8b21d1b",
    "signer": "0x97Ce19D122F5b51231cF4DBbd25Ac36CBDd6CACa",
    "userId": "426864186"
  }
}