tx 0xff7da52fce3d480ac8316da405bef2810c0f33e00c37cc1abcf82e6f29dff4feCopy

order would be filled (post-only rejected)

{
  "PlaceOrder": {
    "side": "Short",
    "size": 511211973,
    "price": 28717000000,
    "market_id": 3,
    "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
  }
}