protected function createInsert($uid)
    {
        $field1 = rand(1, 2);
        $field2 = rand(0, 1);
        return [
            'user_id' => $uid,
            'name'    => $this->faker->text(20),
            'value'   => '{"field_1":"' . $field1 . '","field_2":"' . $field2 . '"}'
        ];
    }