class DetailedTraceSpan

{

"type": "Standard",
"identity": {
  "id": "....",
  "parent_id": "....",
  "start_time": "01-01-01T00:00:00.0000Z",
  "stop_time": "01-01-01T00:00:00.0001Z",
  "operation": "SQL/User/find"
},
"tags": {
  "allocations": 1000,
  "db.statement": "SELECT * FROM users where id = 1",
  "db.rows": 1,
  "backtrace": [ {
    "file": "app/controllers/users_controller.rb",
    "line": 10,
    "function": "index"
  } ]
}