Lcobucci\JWT\Signer\Rsa::doVerify PHP Method

    public function doVerify(string $expected, string $payload, Key $key) : bool
    {
        $key = openssl_get_publickey($key->getContent());
        $this->validateKey($key);
        return openssl_verify($payload, $expected, $key, $this->getAlgorithm()) === 1;
    }