tx 0x558b3ae5dfb669041ce0d802e21c81afaa13a4a8a655e34cf8c9c61a9ecf4db4Copy

order would be filled (post-only rejected)

{
  "PlaceOrder": {
    "side": "Short",
    "size": 402471921,
    "price": 21540000000,
    "market_id": 1,
    "post_only": true,
    "stop_loss": null,
    "account_id": 42,
    "order_type": "Limit",
    "reduce_only": false,
    "take_profit": null,
    "time_in_force": "GTC",
    "trigger_price": null
  }
}