VerifyRequest

x402 verify request body; fields follow Facilitator protocol

{
    "x402Version": 2,
    "paymentPayload": {
        "x402Version": 0,
        "accepted": {},
        "payload": {
            "type": "voucher",
            "channelConfig": {},
            "voucher": {}
        }
    },
    "paymentRequirements": {}
}