private async Task SubscribeReturn(PersistentSubscription ps, ResolvedEvent vnt, int?value, CancellationToken ct) { var json = Encoding.UTF8.GetString(vnt.Event.Data.Span); var result = JsonSerializer.Deserialize <TestEvent>(json); _ = result.ImportantData; await ps.Ack(new[] { vnt.Event.EventId }); }