POST /v1.0/1234/instances/aeb0b280-7c21-42cc-938f-275c0cc83c08/action HTTP/1.1
User-Agent: python-example-client
Host: ord.databases.api.rackspacecloud.com
X-Auth-Token: d45346d7-b313-41fb-a29b-e8f5f7c59de2
Accept: application/json
Content-Type: application/json

{
    "resize": {
        "flavorRef": "https://ord.databases.api.rackspacecloud.com/v1.0/1234/flavors/3"
    }
}
