curl --request GET \
  --url https://api.simmer.markets/api/sdk/webhooks

{
  "webhooks": [
    {
      "id": "<string>",
      "url": "<string>",
      "events": [
        "<string>"
      ],
      "active": true,
      "created_at": "<string>",
      "consecutive_failures": 0,
      "last_delivery_at": "<string>"
    }
  ],
  "count": 123
}