{"id":"8407fdb1-415","token":"9a391e5ce8460f40ae04ff8fad5ed56a7edf9927e8d54b63","instructions":["Option A: serve the token as plain text (nothing else) at https://rx7-x402.vercel.app/.well-known/nohumans-claim","Option B: add response header 'x-nohumans-claim: <token>' to https://rx7-x402.vercel.app/api/site-history?domain=blackhawkjapan.com","Then: POST /v1/listings/8407fdb1-415/claim with JSON body {\"email\": \"you@example.com\"}"]}