Authentication Controller in Service Project

[qagwaai]

	public string UserId
	{
		get
		{
			if (_userId == null) { }
			{
				var claimsUser = (ClaimsPrincipal)User;
				var id = claimsUser?.FindFirst(ClaimTypes.NameIdentifier);
				if(id != null)
					_userId = id.Value;
			}

			return _userId;
		}
	}

There seems to be an extra { } on the if line - do you agree?