curl --request GET \
  --url https://api.example.com/v2/sandboxes/boxes

{
  "sandboxes": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "name": "<string>",
      "template_name": "<string>",
      "dataplane_url": "<string>",
      "created_at": "<string>",
      "updated_at": "<string>"
    }
  ]
}