Returns one entry per audience the talent has interacted with. Each entry includes the full event history trail (entered/exited with reasons), the linked campaigns (name, status, type), and a lastEventType denormalized from the most recent event. To scope results, filter on lastEventType via the standard filter syntax — e.g. filter[where][lastEventType][$in][]=entered (or exited, or both). The match runs after the audience-level grouping. Supported filter fields: lastEventType (string/$in), audienceName (regex), and relatedCampaigns.name (regex).