No you need to create a user and password in hivemq.com using the Access Management page (as I showed in the pictures above)
The broker's server id is the long URL you just showed us, less mqtts:// and :1883 , but I only got hivemq working in Node-red with port 8883 and ticking Use TLS (also shown in my pictures above)
Now you have told the internet your hivemq URL, it might be wise to delete that and create a new one.