Início rápido de notificações por push

public void ChallengeRandomClosePlayer(string currentPlayerId) {
    PlayFabClientAPI.GetLeaderboardAroundPlayer(new GetLeaderboardAroundPlayerRequest() {
        MaxResultsCount = 10,
        StatisticName = "Rank",
        PlayFabId = currentPlayerId,
    }, result => OnLeaderboardLoaded(result,currentPlayerId),OnPlayFabError);
}

private void OnLeaderboardLoaded(GetLeaderboardAroundPlayerResult leaderboard, string currentPlayerId) {
    var index = (int)(UnityEngine.Random.value * (leaderboard.Leaderboard.Count-1));
    if (leaderboard.Leaderboard[index].PlayFabId == currentPlayerId)
        index = (index + 1) % leaderboard.Leaderboard.Count;
    var targetId = leaderboard.Leaderboard[index].PlayFabId;

    PlayFabClientAPI.ExecuteCloudScript(new ExecuteCloudScriptRequest() {
        FunctionName = "ChallengePlayer",
        FunctionParameter = new Dictionary<string, object>() {
            { "TargetId", targetId }
        }
    }, null, OnPlayFabError);
}

public void OnPlayFabError(PlayFabError obj) {
    Debug.Log(obj.GenerateErrorReport());
}

handlers.ChallengePlayer = function (args) {
    var targetId = args.TargetId;
    var leaderboard = server.GetLeaderboardAroundUser({
        MaxResultsCount : 10,
        PlayFabId : currentPlayerId,
        StatisticName : "Rank"
    });

    for(var i = 0; i < leaderboard.Leaderboard.length; i++) {
        var target = leaderboard.Leaderboard[i];
        if(target.PlayFabId !== targetId) continue;

        // subtract virtual currency from current player
        server.SubtractUserVirtualCurrency({
            VirtualCurrency : "CH",
            PlayFabId : currentPlayerId,
            Amount : 1
        });

        // get current player profile
        var profile = server.GetPlayerProfile({
            PlayFabId : currentPlayerId
        }).PlayerProfile;

        // try to send push notification
        try {
            server.SendPushNotification({
                Recipient : targetId,
                Package : {
                    Message : `${profile.DisplayName} challenges you for a battle!`,
                    Title: "You have been challenged",
                }
            });
        } catch (ex) {
            // Target player has not registered for Push Notifications
        }
        return;
    }
}