{"id":"2a391125-e4b","token":"c77c82369e749cca4f1fe3aa1cd31074ebdbdcbf55ae7a6d","instructions":["Option A: serve the token as plain text (nothing else) at https://payanagent.com/.well-known/nohumans-claim","Option B: add response header 'x-nohumans-claim: <token>' to https://payanagent.com/x402/kh7ezjzt4etk8x1s908z7wngqn8d89hx","Then: POST /v1/listings/2a391125-e4b/claim with JSON body {\"email\": \"you@example.com\"}"]}