You can decode the CBOR parts using https://cbor.me (after getting the data as hex bytes).
You can find the mappings for the public key data (which is COSE_Key-encoded) here: https://datatracker.ietf.org/doc/html/rfc8152. Or if you're lucky, your data matches up closely with one of the examples from https://www.w3.org/TR/webauthn/#sctn-encoded-credPubKey-examples.
(apologies for the delayed reply, just hoping this helps the next person who comes looking)
jdoxey_anz
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