ASP.Net MVC扩展OAuth令牌到期

Question

我想从ASP.Net扩展访问令牌的有效期。下面是App_Start \ Startup.Auth.cs

中的代码

OAuthOptions = new OAuthAuthorizationServerOptions
        {
            TokenEndpointPath = new PathString("/Token"),
            Provider = new ApplicationOAuthProvider(PublicClientId),
            //AuthorizeEndpointPath = new PathString("/api/Account/ExternalLogin"),
            AccessTokenExpireTimeSpan = TimeSpan.FromDays(364), 
            AllowInsecureHttp = true // In production mode set AllowInsecureHttp = false
        };

但是，如果我将其部署到活动站点，该令牌将无法使用一年。我使用邮递员进行测试，设法获得了令牌，但是令牌将在20分钟后过期。

Providers / ApplicationOAuthProvider.cs

public ApplicationOAuthProvider(string publicClientId)
    {
        if (publicClientId == null)
        {
            throw new ArgumentNullException("publicClientId");
        }

        _publicClientId = publicClientId;
    }

邮递员的结果

{
"access_token": "accesstoken",
"token_type": "bearer",
"expires_in": 86399,
"userName": "admin@admin",
".issued": "Thu, 11 Oct 2018 04:39:03 GMT",
".expires": "Fri, 12 Oct 2018 04:39:03 GMT"
}

我可以做些什么以ASP.Net MVC方式进行扩展吗？