NewsletterOutlineItem(NewsletterOutlineItem)

{
    "id": 0,
    "newsobjects": [
        {
            "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
            "title": "string"
        }
    ],
    "order": 0,
    "title": "string",
    "type": "HEADING"
}