post https://demo2022-uat-api.accredit-solutions.com/api/webhookSubscription
Create a new webhook subscription and generate a new signature key, if one does not already exist.
Upon creating a new webhook subscription, your signature key will be included in the response.
If you already have a signature key assigned to your use, it will be returned.
Otherwise, a new signature key will be generated for you.
If you wish to refresh this at any point, you can do so via the Generate new signature key endpoint