Namshi\JOSE\SimpleJWS::setPayload PHP Метод

    public function setPayload(array $payload)
    {
        if (!isset($payload['iat'])) {
            $payload['iat'] = time();
        }
        return parent::setPayload($payload);
    }

 /**
  * {@inheritdoc}
  */
 public function encode(array $data)
 {
     $jws = new SimpleJWS(array('alg' => self::ALGORYTHM));
     $jws->setPayload($data);
     $jws->sign($this->getPrivateKey());
     return $jws->getTokenString();
 }