update.json

{
  "request_id": "52f367367575e449c3000001",
  "shipment": {
    "id": "12836",
    "order_id": "R154085346",
    "email": "spree@example.com",
    "cost": 5,
    "status": "shipped",
    "stock_location": "default",
    "shipping_method": "UPS Ground (USD)",
    "tracking": "12345678",
    "updated_at": null,
    "shipped_at": "2014-02-03T17:33:55.343Z",
    "shipping_address": {
      "firstname": "Joe",
      "lastname": "Smith",
      "address1": "1234 Awesome Street",
      "address2": "",
      "zipcode": "90210",
      "city": "Hollywood",
      "state": "California",
      "country": "US",
      "phone": "0000000000"
    },
    "items": [
      {
        "name": "Spree T-Shirt",
        "sku": "SPREE-T-SHIRT",
        "external_ref": "",
        "quantity": 1,
        "price": 30,
        "variant_id": 73,
        "options": {}
      }
    ]
  }
}