Schema::create('users', function (Blueprint $table) {
    $table->increments('id');
    $table->integer('identifier')->unique();
    $table->string('username')->unique();
    $table->string('name');
    $table->string('avatar');
    $table->string('trade')->nullable();
    $table->decimal('funds')->default(0);
    $table->enum('visibility', [1, 2, 3]);
    $table->uuid('api_token');
    $table->timestamps();
});

User::updateOrCreate([
    'identifier' => 'dasdasd',
    'username' => $user->nickname,
    'name' => $user->name,
    'avatar' => $user->avatar,
    'visibility' => $user->visibility,
    'api_token' => Uuid::generate()
]);