curl --request POST \
  --url https://api-dev.iclosed.io/customFields/answerCustomField \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "contactId": 123,
  "customFieldId": 123,
  "answer": "<string>"
}
'

{
  "data": {
    "id": 123,
    "contactId": 123,
    "customFieldId": 123,
    "answer": "<string>",
    "type": "<string>",
    "createdAt": "2023-11-07T05:31:56Z",
    "updatedAt": "2023-11-07T05:31:56Z"
  }
}