It's an ecash token that is claimable by whoever has the token and pops it into an ecash wallet.
In this case, the wallet is nostr:nprofile1qqs9pk20ctv9srrg9vr354p03v0rrgsqkpggh2u45va77zz4mu5p6ccpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz9thwden5te0dehhxarj9ehhsarj9ejx2a30qyg8wumn8ghj7mn0wd68ytnddakj7xph5zr's wallet.cashu.me , which provides mechanisms for sharing a token via a link to the web wallet.
Anyone who comes along and clicks the link effectively just "picked the money up off the ground".