curl --location --request POST 'https://prod.your-api-server.com/booking/456e7890-e89b-12d3-a456-426614174000/confirm' \
--header 'Authorization: <api-key>'{
"message": "Booking confirmed successfully",
"bookingId": "456e7890-e89b-12d3-a456-426614174000",
"campaignsUpdated": 2,
"usageRecordsCreated": 8
}