Add/Remove Tags to Infusion Contact

     $current_user = wp_get_current_user();
     $objects = Infusionsoft_DataService::query(new Infusionsoft_Contact(), array('Email' => '%' . $current_user->user_email . '%'));
     $contactId = $objects[0]->Id;
     if (isset($_POST['check-one']) && isset($_POST['subscription'])) {
                Infusionsoft_ContactService::addToGroup($contactId, 163);
                wp_redirect(get_permalink());
                exit;
     }
     if ($_POST['subscription']) {
                Infusionsoft_ContactService::removeFromGroup($contactId, 163);
                wp_redirect(get_permalink());
                exit;
     }