tx 0x75aa1fd6c8b0d356d6103088cb4c342c5a0be73e75fded1d43bf5680bfbde7daCopy

order would be filled (post-only rejected)

{
  "PlaceOrder": {
    "side": "Short",
    "size": 449034576,
    "price": 6691000000,
    "market_id": 11,
    "post_only": true,
    "stop_loss": null,
    "account_id": 52,
    "order_type": "Limit",
    "reduce_only": false,
    "take_profit": null,
    "time_in_force": "GTC",
    "trigger_price": null
  }
}