User Meta
$usermeta_query = array(
'relation' => 'AND',
array(
'key' => 'api_userkey',
'value' => 'c8fd4e69-36fe-44d6-ac29-d04e08ec5159',
'compare' => '=',
),
array(
'key' => 'api_secretkey',
'value' => '#}*~%>(^^}#}[>>@&{!}~!*>>%]{#',
'compare' => '=',
),
);