UserCredential
| Name | Description | Type | Additional information | 
|---|---|---|---|
| Username | The username, which is your login id / email address. For example, someone@emailhost.com. Required for POST /user/change-username. | string | None. | 
| Password | The password. Must be between 6 and 250 characters. Required for POST /user/change-password. | string | None. | 
| _links | Hypermedia links. Contains contextual links to possible next actions related to this resource. Only present in responses. This data is not to be sent to the server. | Collection of Link | None. |