curl --request GET \
  --url https://api.example.com/api/encryption/v1/envelope/{envelope_id}/dek

{
  "items": [
    {
      "created_at": "2023-11-07T05:31:56Z",
      "envelope_encryption_key_id": {
        "arn": "<string>",
        "region": "<string>"
      },
      "id": "<string>",
      "updated_at": "2023-11-07T05:31:56Z"
    }
  ],
  "next_page_token": "<string>"
}