Handling multiple MassTransit response types

I needed to publish a message across the ESB (MassTransit) that will return a different type of object depending on how the message is processed. I wanted to implement this in a generic way so I could wire up other services with similar requirements in the same way.

Publish a request

public IGenericResponse<TPayload> PublishRequest<TMessage, TPayload>(TMessage message, Type[] potentialResponseTypes)
        where TMessage : class
{
    IGenericResponse<TPayload> commandResult = null;

    _bus.PublishRequest(message, c =>
    {
        foreach (Type responseType in potentialResponseTypes)
        {
            Type genericHandler = typeof(GenericHandler<,>).MakeGenericType(new[]{ responseType, typeof(TMessage)});

            var handler = new Action<object>(result =>
            {
                commandResult = (IGenericResponse<TPayload>) result;
            });

            Activator.CreateInstance(genericHandler, new object[] {c, handler});
        }

        c.SetTimeout(10.Seconds());
    });

    return commandResult;
}

Generic Handler to wire it up

internal class GenericHandler<TPayload, TMessage>
    where TMessage : class
    where TPayload : class
{
    public GenericHandler(InlineRequestConfigurator<TMessage> configurator, Action<object> handler)
    {
        configurator.Handle<GenericResponse<TPayload>>(handler);
    }
}

Thoughts?