/**
  * Get settings
  */
 protected function buildData()
 {
     $data = array();
     /** @var $signature srCertificateSignature */
     foreach ($this->type->getSignatures() as $signature) {
         $row = array();
         $row['id'] = $signature->getId();
         $row['last_name'] = $signature->getLastName();
         $row['first_name'] = $signature->getFirstName();
         $data[] = $row;
     }
     $this->setData($data);
 }