PteroTheme/database/migrations/2016_09_04_182835_create_notifications_table.php

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateNotificationsTable extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        Schema::create('notifications', function (Blueprint $table) {
            $table->string('id')->primary();
            $table->string('type');
            $table->morphs('notifiable');
            $table->text('data');
            $table->timestamp('read_at')->nullable();
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::drop('notifications');
    }
}