See the API's various operations for details on their request parameters and response data:

OperationMethodEndpoint
Get a webhook administrative access tokenPOST/{customerId}/‚Äčlogin/‚Äčtoken
List subscriptionsGET/{customerId}/‚Äčwebhooks/‚Äčsubscriptions
Create a subscriptionPOST/{customerId}/‚Äčwebhooks/‚Äčsubscriptions
Get a subscriptionGET/{customerId}/‚Äčwebhooks/‚Äčsubscriptions/‚Äč{subscriptionId}
Modify a subscriptionPATCH/{customerId}/‚Äčwebhooks/‚Äčsubscriptions/‚Äč{subscriptionId}
Delete a subscriptionDELETE/{customerId}/‚Äčwebhooks/‚Äčsubscriptions/‚Äč{subscriptionId}
List eventsGET/{customerId}/‚Äčwebhooks/‚Äčsubscriptions/‚Äč{subscriptionId}/‚Äčevents
Get an eventGET/{customerId}/‚Äčwebhooks/‚Äčsubscriptions/‚Äč{subscriptionId}/‚Äčevents/‚Äč{eventId}
Get event historyGET/{customerId}/‚Äčwebhooks/‚Äčsubscriptions/‚Äč{subscriptionId}/‚Äčevents/‚Äč{eventId}/‚Äčhistory
Redeliver an eventPOST/{customerId}/‚Äčwebhooks/‚Äčsubscriptions/‚Äč{subscriptionId}/‚Äčevents/‚Äč{eventId}/‚Äčredelivery
Send a test eventPOST/{customerId}/‚Äčwebhooks/‚Äčsubscriptions/‚Äč{subscriptionId}/‚Äčtest