public class myClass : MonoBehaviour {
    void OnEnable() {
        EventManager.OnInstantiateControllerEnd += myCustomListener;
    }
    
    void OnDisable() {
        EventManager.OnInstantiateControllerEnd -= myCustomListener;
    }
    
    void myCustomListener(int controller, bool removeCollider) {
        // Custom listener logic goes here.
    }
}