I've developped a business system which is connected to an external Typeform via a webhook. Until recently, every webhook request sent by the API was authentified with a token string, which I could parse to a GUID. This was really helpful for reusing it into the system.
A few days ago, the identification token format changed to something like :
pvv25szf6ejrdyz3vdgpvv9w37u9t0at
which is obviously not a GUID (non hexa letters).
Is there any extended GUID format/norm that I am not aware of and which could generate this kind of string? Or is this just a random string, nothing more, nothing less?
Thanks!