unprotected – or – logged in professional

$meta_query = array(
	'relation' => 'OR',
	array(
		'key'     => 'access',
		'value'   => 'unprotected',
		'compare' => '=',
	),
	array(
		'relation' => 'AND',
		array(
			'key'     => 'access',
			'value'   => 'loggedin',
			'compare' => '=',
		),
		array(
			'key'     => 'logged_in_roles',
			'value'   => '2',
			'compare' => 'IN',
		),
	),
);