var outageNoticenotice = new OutageNoticeDTONoticeDTO
{    
    Services = new List<int> {2, 7, 11},
    EnglishHeaderText = "header text en",
    FrenchHeaderText = "header text fr",
    EnglishBodyText = "english body en",
    FrenchBodyText = "french body text",
    StartDate = DateTime.Now, 
    EndDate = DateTime.Now.AddDays(5)
};

var notice = await _outageNoticeManagernoticeManager.Create(outageNoticenotice);