My controller
$arr = array(
        "key1",
        "key2",
        "key3"
    );
    foreach ($arr as $key) {
        $this->bus->dispatch(new HubspotMessage($key));
    }
My Message Handler
$key = $hubspotMessage->getKey();
$selectedEntity = $this->entityManager->getRepository(Deal::class)->find(30);
I've tried several things but always get an error like this.
Error thrown while handling message App\Message\HubspotMessage. Sending for retry #2 using 2000 ms delay. Error: "Call to a member function get() on null"
