curl --request POST \
  --url http://localhost:3000/api/admin/user \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "email": "jsmith@example.com",
  "fname": "<string>",
  "lname": "<string>",
  "status": "active",
  "plan": "free",
  "credits": 123,
  "accountType": "user",
  "picture": "<string>",
  "password": "<string>",
  "institution": "<string>",
  "remember_history_count": 123,
  "mustChangePassword": true
}'

{
  "success": true,
  "id": "<string>",
  "message": "<string>"
}