private async Task HandleJoinCompetitionAction(InvokeActionData invokeActionData, Activity activity)
{
var competition = await _competitionService.AddCompetitor(invokeActionData.CompetitionId, activity.From.AadObjectId, activity.From.Name);
var updatedActivity = _activityBuilder.CreateMainActivity(competition);
using (var botClient = _botClientFactory.CreateBotClient(activity.ServiceUrl))
{
await botClient.UpdateActivityAsync(competition.ChannelId, competition.MainActivityId, updatedActivity);
}
}
