Button.onClick how to pass parameter?

A button in class UIManager, when the button click, how to pass params(such as scene name) to the method LoadLevelByName in class LevelManager .

 public class UIManager : MonoBehaviour {
 
     [SerializeField]
     private Button _startButton;
 void Start ()
     {
         _startButton.onClick.AddListener(LevelManager.Instance.GotoLevel);
     }
 }

 public class LevelManager : MonoBehaviour
 {
 
     public static LevelManager Instance;
     public UnityAction GotoLevel;
 
     void Awake ()
     {
         if ( Instance == null )
         {
             Instance = this;
             DontDestroyOnLoad(this.gameObject);
         }
         else if ( Instance != null )
         {
             Destroy(this.gameObject);
         }
     }
 
     void Start ()
     {
         GotoLevel = () => LoadLevelByName();
     }
     public void LoadLevelByName (string levelName)
     {
         SceneManager.LoadScene(levelName);
     }
 }