curl --request GET \
  --url https://api.fourthwall.com/open-api/v1.0/mailing-list-entries \
  --header 'Authorization: Basic <encoded-value>'

{
  "results": [
    {
      "id": "eml_EdJvIXu3SEiXe_QkPavHSA",
      "email": "<string>"
    }
  ],
  "total": 123,
  "page": 123,
  "size": 123,
  "totalPages": 123
}