No idea what lnproxy is but.....

nostr:nevent1qqsfyqkucx3tzxg5wda05qge8sa8ltlugcwgspe5y67ju7deuqjf90gpzdmhxue69uhhyetvv9ukzcnvv5hx7un8qgswyk5typgsy2sgl97jvl2tn8wlc5q2p0lpfxjlvu0ydaewn63kajgrqsqqqqqp7se549 

 I had a vague idea that it is used by @0a830eae for wrapped invoices to increase receiver privacy.