ASP.NET Core simple DB cleaner background service

In an application there is a table for one-time-passwords (OTP) which will be sent to users via SMS. These OTPs are needed for a maximum of two hours in order to detect abusing behaviours.

A simple DB cleaner will delete these rows (DeleteAsync is from this library):

public class DbCleaner : BackgroundService
{
    private readonly IServiceProvider serviceProvider;
    private readonly ILogService logService;

    public DbCleaner(
        IServiceProvider serviceProvider,
        ILogService logService)
    {
        this.serviceProvider = serviceProvider;
        this.logService = logService;
    }

    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
    {
        while (!stoppingToken.IsCancellationRequested)
        {
            using var scope = serviceProvider.CreateScope();
            var dbContext = scope.ServiceProvider.GetRequiredService<IdentityDbContext>();

            var otpDeleted = await dbContext.OTP
                .IgnoreQueryFilters()
                .Where(x => x.CreationTime.AddHours(2) >= DateTimeOffset.UtcNow)
                .DeleteAsync();

            await LogOperationAsync(otpDeleted);

            try
            {
                await Task.Delay(TimeSpan.FromHours(1), stoppingToken);
            }
            catch (TaskCanceledException)
            {
                // application is shutting down
                // ignore this
            }
        }
    }

    private Task LogOperationAsync(int otpCount)
    {
        // ...
    }
}

On every publish, the timer will be reset which is fine for this project.