{"subscription": {"plan": "unlimited-30d", "price": "9.0", "currency": "USDC", "period_days": 30, "billing": "one-time prepayment", "auto_renews": false, "how": "Pay once for 30 days, receive a signed entitlement token, send it in the X-ATTEST-ENTITLEMENT header. The token is Ed25519-signed and can be verified without this service. No recurring charges: when the 30 days run out, access stops and renewal is an explicit new payment.", "limit": "no daily cap while the token is valid", "signed_with": "000e7c470daf8a57", "verify_yourself": "The token carries an Ed25519 signature. Check the fingerprint above against the token's public_key to confirm it was issued here — this service never trusts a key supplied by the token."}}