tx 0x2ac70242c98d05516ab08dc8250afe5adfbb52148a9d40009adc3fbd5d3cef6dCopy

order would be filled (post-only rejected)

{
  "PlaceOrder": {
    "side": "Short",
    "size": 4269704571,
    "price": 643000000,
    "market_id": 7,
    "post_only": true,
    "stop_loss": null,
    "account_id": 309,
    "order_type": "Limit",
    "reduce_only": true,
    "take_profit": null,
    "time_in_force": "GTC",
    "trigger_price": null
  }
}