Username = api_key_id, Password = api_key_secret
gigs.partially_synced
Your name for the webhook subscription.
Where you want to receive webhook delivery. This can be either a backend URL that you manage, or a URL provided by a webhook management service.
Optional secret used to verify webhooks.
"days_synced": <Integer> specifies how many days of synced gigs (starting from the date of the most recent gig) are needed to trigger the webhook.