{
    "credentials":[{
            "passwordCredentials":{
                "username":"test_user",
                "password":"mypass"
            }
        },
        {
            "RAX-KSKEY:apiKeyCredentials":{
                "username":"test_user",
                "apiKey":"aaaaa-bbbbb-ccccc-12345678"
            }
        }
    ],
    "credentials_links":[]
}
