Sitecore ListManagaer Operation

private void ListManagerOperate()
{
    // 获取服务
    IClientApiService clientApiService = ServiceLocator.ServiceProvider.GetRequiredService<IClientApiService>();

    // EXM manager root id
    string managerRoot = Settings.GetSetting(Global.ExmRoot, "{C6AC22DB-90F2-4765-A383-78311E41BFF4}");
    // optout list item id
    string GlobalOptout = Settings.GetSetting("GlobalOptoutList", "{ADCC924D-DC6C-406C-B8C7-89A58F829871}");
    ID managerRootId = new ID(managerRoot);
    ID GlobalOptoutId = new ID(GlobalOptout);
    
    // RemoveFromList：从 target list id 里移除此条数据 
    clientApiService.UpdateListSubscription(new UpdateListSubscriptionMessage()
    {
        ListSubscribeOperation = ListSubscribeOperation.RemoveFromList
        // public enum ListSubscribeOperation
        // {
        //     Subscribe,
        //     Unsubscribe,
        //     UnsubscribeFromAll,
        //     AddToList,
        //     RemoveFromList,
        // }
        , ContactIdentifier = new ContactIdentifier("form", "标识符", ContactIdentifierType.Known)
        , ManagerRootId = managerRootId.Guid
        , ListId = GlobalOptoutId.Guid
    });
}