Order posts by multiple ACF fields

order-posts-multiple-meta-keys

$args = array(
'meta_query' => array(
	'meta_key_1' => array(
		'key' => 'product_price', // field_name_1
		'value' => array( 500, 1000 ),
		'type' => 'numeric',
		'compare' => 'BETWEEN',
	),
	'meta_key_2' => array(
		'key' => 'product_type', //field_name_2
		'compare' => 'EXISTS',
	), 
),
'orderby' => array(
	'meta_key_1' => 'ASC',
	'meta_key_2' => 'DESC',
),
);