mivita/app/Models/UserAboCardChange.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Support\Carbon;

/**
 * Audit entry for a credit-card token change on an Abo: when it was changed,
 * the masked card, and from which context (portal/crm/link). Holds no PAN/CVC.
 *
 * @property int $user_abo_id
 * @property string|null $masked_card
 * @property string|null $source
 * @property Carbon|null $created_at
 */
class UserAboCardChange extends Model
{
    public const UPDATED_AT = null;

    protected $table = 'user_abo_card_changes';

    protected $fillable = [
        'user_abo_id',
        'masked_card',
        'source',
    ];

    protected $casts = [
        'created_at' => 'datetime',
    ];

    public function user_abo(): BelongsTo
    {
        return $this->belongsTo(UserAbo::class, 'user_abo_id');
    }
}