PlanWebinarForProject

{
    "before": {
        "id": 1,
        "date_end": "2019-08-24T14:15:22Z",
        "title": "string",
        "prolongation": 0
    },
    "current": {
        "id": 1,
        "date_end": "2019-08-24T14:15:22Z",
        "title": "string",
        "prolongation": 0
    },
    "next": {
        "id": 1,
        "date_end": "2019-08-24T14:15:22Z",
        "title": "string",
        "prolongation": 0
    }
}