movies/app/Models/ExternalId.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class ExternalId extends Model
{
    public const TYPE_MOVIE = 'movie';
    public const TYPE_SHOW = 'show';

    protected $fillable = [
        'entity_id',
        'entity_type',
        'tmdb_id',
        'imdb_id',
        'wikidata_id',
        'facebook_id',
        'instagram_id',
        'twitter_id',
        'tvdb_id',
        'freebase_id',
        'tvrage_id',
    ];
}