/var/www/doncode.com.ua/www/lib/sendgrid/examples/helpers/eventwebhook
Edit: /var/www/doncode.com.ua/www/lib/sendgrid/examples/helpers/eventwebhook/example.php (511B)
convertPublicKeyToECDSA($publicKey);
return $eventWebhook->verifySignature(
$ecPublicKey,
$request->getContent(),
$request->header(EventWebhookHeader::SIGNATURE),
$request->header(EventWebhookHeader::TIMESTAMP)
);
}