How to scale or resize gameobjects in Unity Polyspatial Mixed Reality Mode

I have a Unity polyspatial mixed reality mode experience. I want to allow the user to resize the gameobject by scaling up and down. The app should be able to read some kind of gesture from the user to carry out an action like this.

I do not know how to implement this. Please if it possible, I would need direction on how to implement a functionality like this.

Thank you.