protected function sendSetDescription($text)
    {
        $text = rawurldecode($text);
        $matches = array();
        // TODO: handle user id with quotation marks
        $exp = '/\n"(.+)"\n.*\sID ([A-Z0-9]+),\n/mu';
        if (preg_match($exp, $text, $matches) === 1) {
            $userId = $matches[1];
            $keyId  = $matches[2];

            if ($this->currentPin === null || $this->currentPin['keyId'] !== $keyId) {
                $this->currentPin = array(
                    'userId' => $userId,
                    'keyId'  => $keyId
                );
                $this->log(
                    '-- looking for PIN for ' . $keyId . PHP_EOL,
                    self::VERBOSITY_ALL
                );
            }
        }

        return $this->send($this->getOK());
    }