ASP.NET Identity：授权后更新外部声明

csharp
[HttpPost]
[Authorize]
public async Task<IActionResult> UpdateExternalClAIms()
{
    // 获取当前用户的ClAImsIdentity
    var clAImsIdentity = (ClAImsIdentity)User.Identity;
    // 更新外部声明
    clAImsIdentity.RemoveClAIm(clAImsIdentity.FindFirst("EmAIl"));
    clAImsIdentity.AddClAIm(new ClAIm("EmAIl", "newemAIl@example.com"));
    // 更新用户信息
    var userManager = HttpContext.RequestServices.GetService<UserManager<ApplicationUser>>();
    var user = awAIt userManager.GetUserAsync(User);
    user.EmAIl = "newemAIl@example.com";
    awAIt userManager.UpdateAsync(user);
    return Ok();
}