tx 0x5d47ce5d1da25032c0f7c8fc710f49ba03fc7f2ec96a6f8f1b7c122bee48521aCopy

order would be filled (post-only rejected)

{
  "PlaceOrder": {
    "side": "Short",
    "size": 5000000,
    "price": 512000000,
    "market_id": 5,
    "post_only": true,
    "stop_loss": null,
    "account_id": 146,
    "order_type": "Limit",
    "reduce_only": false,
    "take_profit": null,
    "time_in_force": "GTC",
    "trigger_price": null
  }
}