"customer": <UP TO DATE STRIPE CUSTOMER>,
"result": "pause", // pause, discount, cancel, abort
"feedback": "Freeform feedback from customer",
"surveyResponse": "Too Expensive",
"mode": "LIVE", // Stripe mode, LIVE or TEST
// Segment information will be sent if the customer belonged to a segment defined in Churnkey
"name": "My annual customers",
"attribute": "BILLING_INTERVAL",