curl --request GET \
  --url 'https://{domain}/api/v2/common/lists/countries?api-key='

{
  "status": "success",
  "code": 200,
  "name": "OK",
  "message": "<string>",
  "info": {
    "countries-list": [
      {
        "id": 123,
        "title": "<string>",
        "country_code": "<string>"
      }
    ]
  }
}