tx 0x811a040aa61b5ac4e5a37438d0c4b0bbbc646e893e89ab33af2c68d4854adc5fCopy

order would be filled (post-only rejected)

{
  "PlaceOrder": {
    "side": "Short",
    "size": 20000000,
    "price": 29983000000,
    "market_id": 3,
    "post_only": true,
    "stop_loss": null,
    "account_id": 72,
    "order_type": "Limit",
    "reduce_only": false,
    "take_profit": null,
    "time_in_force": "GTC",
    "trigger_price": null
  }
}