tx 0x503da4c8ea54a5c2d60d230aa63d23a953e91dc7644d674dbd833c70aca7c06cCopy

order would be filled (post-only rejected)

{
  "PlaceOrder": {
    "side": "Short",
    "size": 31003737947,
    "price": 527000000,
    "market_id": 5,
    "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
  }
}