When inventory has been updated

Product Payload

{
  "event": "inventory.updated",
  "model": "product",
  "model_id": 1, // Product ID
  "data": {
    "id": 1, // Product ID
    "quantity": "100",
    "updated_at": "2023-01-25T21:19:39.925898Z"
  }
}

Variant Payload

{
  "event": "inventory.updated",
  "model": "variant",
  "model_id": 10, // Variant ID
  "data": {
    "id": 10, // Variant ID
    "quantity": "50",
    "product_id": 1, // Product ID
    "updated_at": "2023-01-25T21:19:39.925898Z"
  }
}