Should read something like this:
Post Parameters
| Name | Description |
|---|---|
| username* | string |
| firstName* | string |
| lastName* | string |
| email* | string |
| position | string |
| role* | int |
| timezone | string |
| onlineStatus | string |
| signature | string |
| plainPassword* | object {“password”:string,“confirm”:string} |
I had to dig into the UserApiControllerFunctionalTest.php to figure this out…