{"paymentRequired":{"x402Version":2,"error":"Payment required","resource":{"url":"https://api.example/v1/resource","description":"Example paid resource","mimeType":"application/json"},"accepts":[{"scheme":"exact","network":"eip155:8453","amount":"10000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x1111111111111111111111111111111111111111","maxTimeoutSeconds":60,"extra":{"name":"USD Coin","version":"2"}}]},"policy":{"maxAmountUsd":0.05,"allowedPayTo":["0x1111111111111111111111111111111111111111"]}}