curl --location 'https://www.headout.com/api/public/v2/event-subscriptions/' \
--header 'Headout-Auth: <YOUR_API_KEY>'

{
  "items": [
    {
      "id": "whsub_01j9z8x7v6w5u4t3s2r1q0p9o8",
      "url": "https://your-domain.com/webhooks/headout/events",
      "eventTypes": ["product.listing_status_changed"],
      "description": "Production event subscription",
      "active": true,
      "createdAt": "2026-07-30T10:15:00Z",
      "updatedAt": "2026-07-30T10:15:00Z",
      "authentication": {
        "type": "AUTHORIZATION_HEADER",
        "valueHint": "oken"
      },
      "signingSecretHint": "B0eHyA"
    }
  ]
}