tx 0x80f1c0a7fbd22a128660db389a73dd2b98a7f6812d3cf33fdc21fb1ff6a67efcCopy

order would be filled (post-only rejected)

{
  "PlaceOrder": {
    "side": "Short",
    "size": 271830616,
    "price": 8121000000,
    "market_id": 6,
    "post_only": true,
    "stop_loss": null,
    "account_id": 43,
    "order_type": "Limit",
    "reduce_only": false,
    "take_profit": null,
    "time_in_force": "GTC",
    "trigger_price": null
  }
}