{
    "apikey": "<API Key>",
    "id": "<List ID>",
    "batch": [
        <repeat separator="," value="#{notification.attributes.abandoned}" var="entry">
        {
            "email": {
                "email": "#{entry.email}"
            }
        }
        </repeat>
    ],
    "double_optin": false,
    "update_existing": true
}