Action<KeyValue, int> kvDeepPrint = null;

    // Recursively print a KeyValue structure
    kvDeepPrint = ((kv, depth) =>
    {
        Console.Write(new String('\t', depth));
        Console.ForegroundColor = ConsoleColor.Cyan;
        Console.Write(kv.Name);
        Console.Write("\t");
        Console.ResetColor();
        Console.WriteLine(kv.Value);

        foreach (var child in kv.Children)
            kvDeepPrint(child, depth + 1);
    });

    manager.Subscribe<DotaGCHandler.RichPresenceUpdate>(c =>
    {
        foreach (var richPresence in c.result.rich_presence)
        {
            using (MemoryStream stream = new MemoryStream(richPresence.rich_presence_kv))
            {
                KeyValue rp = new KeyValue();
                if (!rp.TryReadAsBinary(stream))
                    continue;

                Console.WriteLine("Rich Presence for " + richPresence.steamid_user);
                kvDeepPrint(rp, 0);
            }
        }
    });