public static function removeSubscriptions($network, $userToken, $topics)
{
$userId = JWT::decode($userToken, $network->getKey())->user_id;
$userUrn = $network->getUserUrn($userId);
$data = json_encode(array("delete" => self::buildSubscriptions($topics, $userUrn)));
$url = self::getSubscriptionUrl($network, $userUrn);
$response = Client::PATCH($url, self::getHeaders($network, $userToken), $data);
$body = self::getData($response);
if (!property_exists($body, "removed")) {
return 0;
}
return self::getData($response)->{"removed"};
}
