Search Key and value meta

$meta_query = array(
	'relation' => 'AND',
	array(
		'key'     => 'meta_key',
		'value'   => 'form_fields',
		'compare' => 'LIKE',
	),
	array(
		'key'     => 'meta_value',
		'value'   => '1371',
		'compare' => 'LIKE',
	),
);