curl --request PUT \
  --url https://api.veryfront.com/me/username \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "username": "<string>"
}
'

{
  "user": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "email": "[email protected]",
    "name": "<string>",
    "username": "<string>",
    "avatar_src": "<string>",
    "role": [
      "<string>"
    ],
    "approved": true
  },
  "previous_username": "<string>"
}