curl --request PUT \
  --url https://api.fint.app/api/v1/event/ticket/reference/{reference} \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "firstName": "Juan",
  "lastName": "Pérez",
  "email": "juan.perez@example.com",
  "document": "12345678",
  "status": "ADMITTED",
  "customFieldResponses": [
    {
      "id": 123,
      "customFieldId": 5,
      "value": "Vegano"
    },
    {
      "customFieldId": 10,
      "value": "Talla L"
    },
    {
      "customFieldId": 12,
      "value": "42"
    }
  ]
}
'

{
  "id": 123,
  "invoiceId": 123,
  "buyerFirstName": "<string>",
  "buyerLastName": "<string>",
  "buyerDocument": "<string>",
  "buyerEmail": "<string>",
  "buyerPhone": "<string>",
  "totalAmount": "<string>",
  "eventPageId": 123,
  "pdfUrl": "<string>",
  "reference": "<string>",
  "createdAt": "<string>",
  "customFieldResponses": [
    {
      "id": 123,
      "customFieldId": 123,
      "fieldLabel": "<string>",
      "fieldType": "<string>",
      "value": "<string>",
      "optionId": 123,
      "wasRequired": true
    }
  ],
  "eventPage": {
    "id": 123,
    "name": "<string>",
    "reference": "<string>"
  },
  "attendee": {
    "id": 123,
    "firstName": "<string>",
    "lastName": "<string>",
    "document": "<string>",
    "email": "<string>",
    "status": "<string>",
    "amount": "<string>",
    "reference": "<string>",
    "qrUrl": "<string>",
    "generateQr": true,
    "pdfUrl": "<string>",
    "askInformation": true,
    "isAdditional": true,
    "customFieldResponses": [
      {
        "id": 123,
        "customFieldId": 123,
        "fieldLabel": "<string>",
        "fieldType": "<string>",
        "value": "<string>",
        "optionId": 123,
        "wasRequired": true
      }
    ],
    "itemName": "<string>"
  },
  "isManual": true,
  "organizationId": 123
}