{"id":"fba84dce-a3b","token":"acc84842320c52ab7ad6f1127ed6b87fa319dbe106fa174e","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-evolution?url=https%3A%2F%2Fblackhawkjapan.com","Then: POST /v1/listings/fba84dce-a3b/claim with JSON body {\"email\": \"you@example.com\"}"]}