如何通过ASP.NET内核中的接口控制器更新IdentityUser的自定义属性？

using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Identity;

[Route("api/[controller]")]
[ApiController]
public class UserController : ControllerBase
{
    private readonly UserManager<IdentityUser> _userManager;

    public UserController(UserManager<IdentityUser> userManager)
    {
        _userManager = userManager;
    }

    [HttpPost("updateCustomProperty")]
    public async Task<IActionResult> UpdateCustomProperty(string userId, string customProperty)
    {
        var user = await _userManager.FindByIdAsync(userId);
        if (user == null)
        {
            return NotFound();
        }

        // 更新自定义属性的值
        user.CustomProperty = customProperty;

        // 保存更新后的用户信息
        var result = await _userManager.UpdateAsync(user);
        if (!result.Succeeded)
        {
            return BadRequest(result.Errors);
        }

        return Ok();
    }
}