reference/src/main/resources/jcr_root/apps/reference/components/forms/actions/deleteugc/edit.json

{
    "jcr:primaryType": "nt:unstructured",
    "sling:resourceType": "sling-cms/components/editor/slingform",
    "button": "Save",
    "fields": {
        "path": {
            "jcr:primaryType": "nt:unstructured",
            "sling:resourceType": "sling-cms/components/editor/fields/path",
            "label": "Path",
            "name": "path",
            "required": true
        }
    }
}