{
  "action": "<string>",
  "params": "<string>"
}

{
  "ev": "<string>",
  "sym": "<string>",
  "x": 123,
  "i": "<string>",
  "z": 123,
  "p": 123,
  "s": 123,
  "c": {
    "item": 123
  },
  "t": 123,
  "q": 123,
  "trfi": 123,
  "trft": 123
}