getFinishUrl example

$transaction = new OrderTransactionEntity();
        $transaction->setId($transactionId);
        $transaction->setPaymentMethodId($paymentMethodId);
        $transaction->setOrderId($orderId);
        $transaction->setStateId(Uuid::randomHex());
        $tokenStruct = new TokenStruct(null, null, $transaction->getPaymentMethodId(), $transaction->getId(), 'testFinishUrl');
        $token = $this->tokenFactory->generateToken($tokenStruct);
        $request = new Request();
        $tokenStruct = $this->paymentService->finalizeTransaction($token, $request, $salesChannelContext);

        static::assertSame('testFinishUrl', $tokenStruct->getFinishUrl());
        $criteria = new Criteria([$transactionId]);
        $criteria->addAssociation('stateMachineState');
        $transactionEntity = $this->orderTransactionRepository->search($criteria, $this->context)->first();

        static::assertNotNull($transactionEntity);
        static::assertInstanceOf(OrderTransactionEntity::class, $transactionEntity);
        static::assertSame(
            OrderTransactionStates::STATE_PAID,
            $transactionEntity->getStateMachineState()?->getTechnicalName()
        );
    }

    

$result = $this->paymentService->finalizeTransaction(
            $paymentToken,
            $request,
            $salesChannelContext
        );

        $response = $this->handleException($result);
        if ($response !== null) {
            return $response;
        }

        $finishUrl = $result->getFinishUrl();
        if ($finishUrl) {
            return new RedirectResponse($finishUrl);
        }

        return new JsonResponse(null, Response::HTTP_NO_CONTENT);
    }

    private function handleException(TokenStruct $token): ?Response
    {
        if ($token->getException() === null) {
            return null;
        }

sprintf('-%d seconds', abs($tokenStruct->getExpires()))
            );
        }

        $jwtToken = $this->configuration->builder()
            ->identifiedBy(Uuid::randomHex())
            ->issuedAt(new \DateTimeImmutable('@' . time()))
            ->canOnlyBeUsedAfter(new \DateTimeImmutable('@' . time()))
            ->expiresAt($expires)
            ->relatedTo($tokenStruct->getTransactionId() ?? '')
            ->withClaim('pmi', $tokenStruct->getPaymentMethodId())
            ->withClaim('ful', $tokenStruct->getFinishUrl())
            ->withClaim('eul', $tokenStruct->getErrorUrl())
            ->getToken($this->configuration->signer(), $this->configuration->signingKey());

        $this->write($jwtToken->toString(), $expires);

        return $jwtToken->toString();
    }

    public function parseToken(string $token): TokenStruct
    {
        try {