ORM и сериализация массива в save_data_modification

<?php
namespace Vendor\ModuleName;

use Bitrix\Main\Entity;

class TestClassBTable extends Entity\DataManager
{
    public static function getTableName()
    {
        return 'test_class';
    }

    public static function getMap()
    {
        return array(
            'id' => array(
                'data_type' => 'integer',
                'primary' => true,
                'autocomplete' => true,
                'title' => 'id'
            ),
            'test' => array(
                'data_type' => 'text',
                'title' => 'Данные',
                'default_value' => 100,
                'save_data_modification' => function () {
                    return array(
                        function ($value) {
                            var_dump($value);
                            return serialize($value);
                        }
                    );
                }
            )
        );
    }
    public static function onBeforeAdd (Entity\Event $event)
    {
        $result = new Entity\EventResult;
        $fields = $event->getParameter("fields");
        ... проверки в том числе у $fields есть ключ test с массивом...
        $result->modifyFields($fields);
        return $result;
    }
}

Vendor\ModuleName\TestClassBTable::add([
   'test' => [150]
]);

string(5) "Array"

new Entity\TextField('CONTENT', [
        'save_data_modification' => function () {
            return [
                function ($data) {
                    $response = '';
                    try {
                        $response = json_encode($data, JSON_THROW_ON_ERROR);
                    } catch (\Exception $exception) {
                        Helper::writeLog('/ElementHistoryTable.log', print_r(
                            [
                                'save_data_modification',
                                'message'=>$exception->getMessage(),
                                'code'=>$exception->getCode()
                            ]
                        ));
                    }
                    return $response;
                }
            ];
        },
        'fetch_data_modification' => function () {
            return [
                function ($data) {
                    $response = [];
                    try {
                        $response = json_decode($data, true);
                    } catch (\Exception $exception) {
                        Helper::writeLog('/ElementHistoryTable.log', print_r(
                            [
                                'fetch_data_modification',
                                'message'=>$exception->getMessage(),
                                'code'=>$exception->getCode()
                            ]
                        ));
                    }
                    return $response;
                }
            ];
        },
    ]
),

use Bitrix\Sale\Internals\ServiceRestrictionTable;
use Bitrix\Main\ORM\Fields\ArrayField;

$restrictionsEntity = ServiceRestrictionTable::getEntity();

// Поле с правильной десериализацией значения.
$restrictionsEntity->addField(
    (new ArrayField('PARAMS'))->configureSerializationPhp(),
    'PARAMS_AS_ARRAY'
);

$restriction = ServiceRestrictionTable::getList([
    'select' => [
        'PARAMS_AS_ARRAY'
    ]
])->fetchObject();

$params = $restriction->getParamsAsArray();