curl --request POST \
  --url https://{host}/frontend/api/v1/user/{user-id}/avatar \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "avatar": "<string>",
  "crop": {
    "left": 123,
    "size": 97,
    "top": 123
  }
}
'

{
  "avatar": {
    "created": "2023-11-07T05:31:56Z",
    "enabled": true,
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "url": "<string>"
  }
}