User token validation without access token

API
4

We authenticate by

var opt = new TwitchAuthenticationOptions()
{
ClientId = ########,
ClientSecret = ########,
Provider = new TwitchAuthenticationProvider()
{
OnAuthenticated = async z =>
{
z.Identity.AddClaim(new Claim(“TwitchId”, z.User.GetValue(“_id”).ToString()));
z.Identity.AddClaim(new Claim(“TwitchEmail”, z.User.GetValue(“email”).ToString()));
z.Identity.AddClaim(new Claim(“TwitchUsername”, z.User.GetValue(“name”).ToString()));
z.Identity.AddClaim(new Claim(“TwitchLogo”, z.User.GetValue(“logo”).ToString()));
z.Identity.AddClaim(new Claim(“TwitchAccessToken”, z.AccessToken));
}
},
};
What is the procedure for invalidating a session so that we reauthenticate?
Thanks