type
type: "UnavailableXMA" | "StoryXMA" | "ExternalUrlXMA" | "AdvertXMA" | "EventReminderXMA" | "LeaderboardUpdateXMA" | "LiveLocationXMA" | "LocationXMA" | "GroupXMA" | "LightweightActionXMA" | "PageXMA" | "ProductXMA" | "MontageXMA" | "InstagramXMA"