Event sample

span: {
  "name": "user_login_span",
  "kind": "SERVER",
  "attributes": {
    "component": "authentication",
    "http.method": "POST",
    "http.status_code": 200
  },
  "start_time": "2023-03-06T12:00:00Z",
  "end_time": "2023-03-06T12:01:00Z",
  "events": [
    {
      "name": "authentication_success",
      "attributes": {
        "user_id": "1234"
      },
      "timestamp": "2023-03-06T12:00:30Z"
    }
  ]
}