That string looks like a (Universally Unique Identifier) followed by a Unix timestamp. Specifically: UUID: d8bd8879-989b-48e8-97a1-4d027803009d
1661724379 (This translates to August 28, 2022, 10:06:19 PM UTC ) d8bd8879-989b-48e8-97a1-4d027803009d-1661724379...
These are typically used as unique database keys or session IDs to track specific events, files, or users in a system. That string looks like a (Universally Unique Identifier)