Decorating 1 of multiple implemented interfaces

I'm wondering if it's possible to have a decorator for 1 of multiple implemented interfaces in C#. I'm leaning towards no, but maybe.

Here's what I mean

public abstract class Auditable
{
    public string CreatedBy { get; set; }
    public DateTime CreatedAt { get; set; }
    public DateTime ModifiedAt { get; set; }
    public string ModifiedBy { get; set; }
}

public class MyClass : Auditable
{
  // <...> properties
}


public interface IWriteRepository<T> : where T : Auditable
{
    T Create(T entity);
    T Update(T entity);
}

public class AuditRepositoryDecorator<T> : IWriteRepository<T> where T : Auditable
{
    private readonly IWriteRepository<T> _decorated;

    // <...> ctor with injects

    public T Create(T entity)
    {
        entity.ModifiedAt = time;
        entity.CreatedAt = time;
        entity.CreatedBy = invoker;
        entity.ModifiedBy = invoker;

        return _decorated.Create(entity);
    }

    public T Update(T entity)
    {
        entity.ModifiedAt = time;
        entity.ModifiedBy = invoker;

        return _decorated.Update(entity);
    }
}


public interface IMyClassRepository : IWriteRepository<MyClass>
{
     MyClass Get(int id);
}

So I would like to be able to depend on IMyClassRepository repository and whenever Create or Update would get invoked it would go through AuditRepositoryDecorator. It's a piece of logic that is executed a lot and I think it would be much simpler to have as a decorator instead of having a composition relation to some interface that does the same.

IAuditableRepository is never instantiated directly, as it's would always be implemented by another interface, so I think it might not be possible to do what I want to achieve.

I'm using the default dnc2.1 DI framework with Scrutor for decorations.