curl --request GET \
  --url https://api.nedzo.ai/v1/custom-fields/ \
  --header 'Authorization: Bearer <token>'

{
  "status_code": 123,
  "message": "<string>",
  "data": {
    "custom_fields": [
      {
        "name": "<string>",
        "description": "<string>",
        "field_key": "<string>",
        "data_type": "<string>",
        "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "subaccount_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
      }
    ],
    "skip": 123,
    "limit": 123,
    "totalCount": 123
  }
}