safekat/ci4/app/Entities/Usuarios/GroupEntity.php

<?php
namespace App\Entities\Usuarios;

use CodeIgniter\Entity;

class GroupEntity extends \CodeIgniter\Entity\Entity
{
    protected $attributes = [
        "id" => null,
        "keyword" => null,
        "title" => null,
        "description" => null,
        "rules" => null,
        "created_at" => null,
        "updated_at" => null,
    ];
    protected $casts = [
        "rules" => "json",
    ];
}