POST api/v1/Users/UpdateUserInfo

{
  "firstname": "sample string 1",
  "lastname": "sample string 2",
  "phonenumber": "sample string 3",
  "emailaddress": "sample string 4"
}

<UserAccountUpdate xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/NFuels_Database.sharedmodels.User">
  <emailaddress>sample string 4</emailaddress>
  <firstname>sample string 1</firstname>
  <lastname>sample string 2</lastname>
  <phonenumber>sample string 3</phonenumber>
</UserAccountUpdate>

Sample not available.