curl_setopt_array($curl, array(
CURLOPT_URL => 'https://<domain>/<api prefix>/<version>/user/place-user-genealogy/',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => 'POST',
CURLOPT_POSTFIELDS => array('uid' => '<user id>'),
CURLOPT_HTTPHEADER => array(
$response = curl_exec($curl);