OrderUpdated Event

In nopCommerce 2.x, how do I do intercept the order updated event? Here is how I did in in nop 1.9 in Global.asax

<script runat="server">

    void Application_BeginRequest(object sender, EventArgs e)
    {

        //event handlers for avalara
        EventContext.Current.OrderUpdated += nopCommerce.AvalaraTax.AvalaraTaxAPI.OrderUpdatedHandler;
    }
</script>

1. Create a new class which implements 'IConsumer<EntityUpdated<Order>>' interface
2. Implement a handler:

public virtual void HandleEvent(EntityUpdated<Order> eventMessage)
        {
          ...  
        }