{"id":"497ed85f-0bd","token":"81ba264748077fd7beefe70e9f7b82d076181312a25f4569","instructions":["Option A: serve the token as plain text (nothing else) at https://api.anchor-x402.com/.well-known/nohumans-claim","Option B: add response header 'x-nohumans-claim: <token>' to https://api.anchor-x402.com/v1/ledger/summary","Then: POST /v1/listings/497ed85f-0bd/claim with JSON body {\"email\": \"you@example.com\"}"]}