有没有办法在.net核心中获取访问令牌的过期时间

using System;
using System.IdentityModel.Tokens.Jwt;

public class TokenExpirationExample
{
    public static void Main()
    {
        string accessToken = "your_access_token_here";

        JwtSecurityTokenHandler tokenHandler = new JwtSecurityTokenHandler();
        SecurityToken token = tokenHandler.ReadJwtToken(accessToken);
        JwtSecurityToken jwtToken = (JwtSecurityToken)token;

        DateTime expirationTime = jwtToken.ValidTo;
        Console.WriteLine("Access token expiration time: " + expirationTime);
    }
}