Locate Nebula accountid for use with Malwarebytes API

[JohnFirman]

The API requires that a value for accountid be provided in a header, but I cannot find what our account id is anywhere. I have located our license key and a Subscription ID, but neither of those conform to the required pattern:

[\\da-fA-F]{8}-?[\\da-fA-F]{4}-?[\\da-fA-F]{4}-?[\\da-fA-F]{4}-?[\\da-fA-F]{12}$

Where can I find my account id?

[AndrewPP]

If you are logged into Nebula site, it is in the URL line

https://cloud.malwarebytes.com/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/dashboard

Alternatively, it can be found in the local activity log c:\ProgramData\Malwarebytes Endpoint Agent\logs\EndpointAgent.txt