I have a mailing list on mailgun. The system adds a member to the mailing list with a variable named "id". Like this:
$result = $mgClient->post("lists/$listAddress/members", array(
'address' => $email,
'name' => $name,
'subscribed' => true,
'vars' => '{"id":'.$id.'}'
));
Is there any way of updating that member's details (email and the name) based on the value of "id"?