RenewalOrder

{
    "invoice": "lnbc30000n1p...",
    "paymentHash": "b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3",
    "oldExpiry": "2026-09-15T12:00:00Z",
    "newExpiry": "2026-12-15T12:00:00Z",
    "renewalId": "f47ac10b-58cc-4372-a567-0e02b2c3d479"
}