EventBus pattern in C#

EventBus.cs

    public class EventBus
    {
        private Dictionary<Type, List<Action<IEvent>>> actions = new Dictionary<Type, List<Action<IEvent>>>();

        public void Listen<T>(Action<IEvent> callback) where T : IEvent
        {
            if (!actions.ContainsKey(typeof(T)))
            {
                actions.Add(typeof(T), new List<Action<IEvent>>());
            }

            actions[typeof(T)].Add(callback);
        }

        public void ClearCallbacks<T>() where T : IEventMessage
        {
            actions.Remove(typeof(T));
        }

        public void Send<T>(T @event) where T : IEvent
        {
            if (!actions.ContainsKey(typeof(T)))
            {
                return;
            }

            foreach (var action in actions[typeof(T)])
            {
                action(@event);
            }
        }
    }