Cron Meta

$meta_query = array(
	'relation' => 'AND',
	array(
		'relation' => 'OR',
		array(
			'key'     => 'sri_last_cron_update',
			'value'   => 'time()-$last_update_expire_seconds',
			'compare' => '<',
			'type'    => 'NUMERIC',
		),
		array(
			'key'     => 'sri_last_cron_update',
			'compare' => 'NOT EXISTS',
		),
	),
	array(
		'key'     => 'cap_active',
		'compare' => '!=',
	),
);