Integrating OKTA SSO SAML 2.0 with MVC.NET technology which has Simple Membership as middle ware for authentication


I want to integrate OKTA SSO SAML 2.0 with project which has Simple Membership for authentication of users.

Need assistant on the same. Is there any source code to integrate for above requirement.
I am able to setup the configurations for client in OKTA but need the steps for how to validate the response got from OKTA and how to logged in the user with ExternalLoginCallback after successfully validating the response.

Thanks in advance!