{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1581756864",
    "entityType": "Event",
    "nonce": "0x1ec53d657c89cf73046ca78abdb8114fa895fc288e7078ca087a05c60b74c70d",
    "signature": "0xdb4d9643330727538291c7932487ee53c0096b0dee38ffc989a8d11a1108d2ea6de1cfc2fe7a997d3f2687ab4d9135e6718818c490ed498ab8dec97e0c3e1e8c1c",
    "signer": "0xD3166f1e453B1e5051C34D8F652aa7cC250dF34f",
    "userId": "309549173"
  }
}