curl --request PUT \
  --url https://api.byblend.com/api/v1/notifications/email \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "event_codes": [
    [
      "order.shipped",
      "order.delivered"
    ]
  ]
}
'

{
  "is_active": true,
  "subscriptions": [
    {
      "name": "Order Created",
      "description": "Triggered when an order is created",
      "event_code": "order.created"
    }
  ]
}