curl --request POST \
  --url http://localhost/api/v3/profiles/{profile}/regions \
  --header 'Content-Type: application/json' \
  --data '
{
  "region_id": 123,
  "is_active": true,
  "country": "<string>",
  "state": "<string>"
}
'

{
  "data": [
    {
      "id": "<string>",
      "name": "<string>",
      "handle": "<string>",
      "is_active": "<string>",
      "country": "<string>",
      "state": "<string>",
      "created_at": "<string>",
      "updated_at": "<string>"
    }
  ]
}