https://learn.microsoft.com/en-us/dotnet/api/microsoft.web.webpages.oauth.oauthwebsecurity.serializeprovideruserid?view=aspnet-webpages-3.2
OAuthWebSecurity.SerializeProviderUserId(String, String) Method (Microsoft.Web.WebPages.OAuth) |...
Serializes a user ID of the provider.
stringmethodmicrosoftweboauth