RemoteEvent example

        $body = $request->toArray();

        foreach ([$this->signatureHeaderName, $this->eventHeaderName, $this->idHeaderName] as $header) {
            if (!$request->headers->has($header)) {
                throw new RejectWebhookException(406, sprintf('Missing "%s" HTTP request signature header.', $header));
            }
        }

        $this->validateSignature($request->headers, $request->getContent(), $secret);

        return new RemoteEvent(
            $request->headers->get($this->eventHeaderName),
            $request->headers->get($this->idHeaderName),
            $body
        );
    }

    private function validateSignature(HeaderBag $headers, string $body, $secret): void
    {
        $signature = $headers->get($this->signatureHeaderName);
        $event = $headers->get($this->eventHeaderName);
        $id = $headers->get($this->idHeaderName);