tx 0x271b90aac505d2610f2be64806f9d9657f0d8c35b94a45f3963be6cdc965929fCopy

order would be filled (post-only rejected)

{
  "PlaceOrder": {
    "side": "Short",
    "size": 5000000,
    "price": 29855000000,
    "market_id": 3,
    "post_only": true,
    "stop_loss": null,
    "account_id": 27,
    "order_type": "Limit",
    "reduce_only": false,
    "take_profit": null,
    "time_in_force": "GTC",
    "trigger_price": null
  }
}