libgdx - How to use moveTo Actor?

How to use moveTo?

I do so:

actor.addAction(Actions.moveTo(500, 500, 10));

but he does not move

Thanks you

UPDATE

does not move

my code:

public class MyActions extends ApplicationAdapter {
    private Stage stage;
    private Actor actor;

    @Override
    public void create () {


        stage = new Stage();
        actor = new Actor(){
            {
                setSize(100, 100);
            }
            Sprite actorSprite = new Sprite(new Texture(Gdx.files.internal("badlogic.jpg")), 57, 10, (int)getWidth(), (int)getHeight());

            @Override
            public void draw(Batch batch, float parentAlpha) {
                actorSprite.draw(batch, parentAlpha);

            }
        };

        stage.addActor(actor);
        actor.addAction(Actions.moveTo(500, 500, 1));
    }


    @Override
    public void render () {

        Gdx.gl.glClearColor(1, 1, 0, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
        actor.act(Gdx.graphics.getDeltaTime());
        //stage.act();
        stage.draw();
    }
}

what's wrong?