curl --request POST \
  --url http://localhost:3000/v2/SystemGetSystemStats \
  --header 'Content-Type: application/json' \
  --header 'X-Bunker-Token: <api-key>' \
  --data '
{
  "request_metadata": {}
}
'

{
  "status": "ok",
  "stats": {
    "numusers": 123,
    "numtenants": 123,
    "numtokens": 123,
    "numsessions": 123
  }
}