tx 0x949c640ae9c0c109519db4f4c28c75ab8e6a9fdf85ddb3871d1d2ae4d30f7f2cCopy

insufficient margin

{
  "PlaceOrder": {
    "side": "Short",
    "size": 5000000,
    "price": 21528000000,
    "market_id": 1,
    "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
  }
}