"Wraps" is a term that typically is used to indicate that the oldest entries are pushed out for newer entries.
So, assuming "Entries/1" is the oldest entry, then that would be the one to be overwritten. It's possible that "Entries/1" is simply overwritten. I would expect the service to order the entries in the collection properly, so in the latter case "Entries/1" would appear at the end of the list. However, it's entirely possible that the behavior could be "Entries/1" is deleted, and a new "Entries/N+1" entry is created. This level of detail is usually up to the implementation to decide for how to manage the log entry Ids.