dotnet add package Microsoft.AspNetCore.DataProtection.EntityFrameworkCore

    public class MyKeysContext : DbContext, IDataProtectionKeyContext
    {
        // A recommended constructor overload when using EF Core 
        // with dependency injection.
        public MyKeysContext(DbContextOptions<MyKeysContext> options) 
            : base(options) { }

       // This maps to the table that stores keys.
        public DbSet<DataProtectionKey> DataProtectionKeys { get; set; }
    }

public void ConfigureServices(IServiceCollection services)
{
   // using Microsoft.AspNetCore.DataProtection;
    services.AddDataProtection()
        .PersistKeysToDbContext<MyKeysContext>();
}

public class MyMemoryCache 
{
    public MemoryCache Cache { get; set; }
    public MyMemoryCache()
    {
        Cache = new MemoryCache(new MemoryCacheOptions
        {
            SizeLimit = 1024
        });
    }
}

Exception: Cache entry must specify a value for Size when SizeLimit is set.
at Microsoft.Extensions.Caching.Memory.MemoryCache.SetEntry(CacheEntry entry)

 var cacheEntryOptions = new MemoryCacheEntryOptions()
                .SetSize(1)
                .SetSlidingExpiration(TimeSpan.FromSeconds(3));

var dateTimeConverter = new ValueConverter<DateTime, DateTime>(
   v => v.Kind == DateTimeKind.Utc ? v : v.ToUniversalTime(),
   v => DateTime.SpecifyKind(v, DateTimeKind.Utc));

var nullableDateTimeConverter = new ValueConverter<DateTime?, DateTime?>(
   v => !v.HasValue ? v : (v.Value.Kind == DateTimeKind.Utc ? v : v.Value.ToUniversalTime()),
   v => v.HasValue ? DateTime.SpecifyKind(v.Value, DateTimeKind.Utc) : v);

foreach (var property in builder.Model.GetEntityTypes()
                                      .SelectMany(t => t.GetProperties()))
{
    if (property.ClrType == typeof(DateTime))
    {
        property.SetValueConverter(dateTimeConverter);
    }

    if (property.ClrType == typeof(DateTime?))
    {
        property.SetValueConverter(nullableDateTimeConverter);
    }
}

((DateTimeOffset)value).Ticks.ToString()

<PropertyGroup>
   <IncludeOpenAPIAnalyzers>true</IncludeOpenAPIAnalyzers>
</PropertyGroup>