curl --request PUT \
  --url https://api.novacal.io/v1/event-types/{eventType}/booking-forms/update-order \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "fields": [
    {
      "id": 123,
      "position": 1
    }
  ]
}
'

{
  "success": true,
  "data": [
    {
      "id": 123,
      "identifier": "<string>",
      "label": "<string>",
      "type": "text",
      "placeholder": "<string>",
      "is_required": true,
      "is_active": true,
      "position": 1,
      "options": [
        "<string>"
      ]
    }
  ]
}