[WIP] Create User Command

Create User Command:

- [ ] test coverage
- [ ] finish the code
- [ ] gather feedback for my changes


| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | yes
| Deprecations? | no
| Tests pass?   | [ ]
| Fixed tickets | none
| License       | MIT
| Doc PR        | [ ]