tx 0x393ba2458048bc64c2ab0ed4db0ece5d2ee67cbd8ab200d5e3db215f18175a4bCopy

order would be filled (post-only rejected)

{
  "PlaceOrder": {
    "side": "Short",
    "size": 20000000,
    "price": 29983000000,
    "market_id": 3,
    "post_only": true,
    "stop_loss": null,
    "account_id": 72,
    "order_type": "Limit",
    "reduce_only": false,
    "take_profit": null,
    "time_in_force": "GTC",
    "trigger_price": null
  }
}