This object is retrieved from the horizon.platform.users.Users.getUserProof request and will contain a nonce that is used to verify the identity of the User. Read more about user verification in our User Verification guide NOTE: The nonce is only good for one check and then it is invalidated.
abstract val nonce: String A string that is returned from the client that is used to verify the identity of the User. The nonce can be used with the meta account to the https://graph.oculus.com/user_nonce_validate endpoint to verify identity.