tx 0x50f970468c285e8abcbbe6dea100740d403d7b69210c42f0f8633189aa5ddb2dCopy

order would be filled (post-only rejected)

{
  "PlaceOrder": {
    "side": "Long",
    "size": 1503936523,
    "price": 6446000000,
    "market_id": 11,
    "post_only": true,
    "stop_loss": null,
    "account_id": 52,
    "order_type": "Limit",
    "reduce_only": true,
    "take_profit": null,
    "time_in_force": "GTC",
    "trigger_price": null
  }
}