Get aggregate positions

curl --request GET \
  --url https://api.orderly.org/v1/client/aggregate/positions \
  --header 'orderly-account-id: <orderly-account-id>' \
  --header 'orderly-key: <orderly-key>' \
  --header 'orderly-signature: <orderly-signature>' \
  --header 'orderly-timestamp: <orderly-timestamp>'

{
  "success": true,
  "timestamp": 1702989203989,
  "data": [
    {
      "account_id": "0x11111",
      "IMR_withdraw_orders": 0.1,
      "MMR_with_orders": 0.05,
      "average_open_price": 27908.14386047,
      "cost_position": -139329.358492,
      "est_liq_price": 117335.92899428,
      "fee_24_h": 0,
      "imr": 0.1,
      "last_sum_unitary_funding": 70.38,
      "mark_price": 27794.9,
      "mmr": 0.05,
      "pending_long_qty": 0,
      "pending_short_qty": 0,
      "pnl_24_h": 0,
      "position_qty": -5,
      "settle_price": 27865.8716984,
      "symbol": "PERP_BTC_USDC",
      "seq": 1730181536341943600,
      "timestamp": 1685429350571,
      "unsettled_pnl": 354.858492
    },
    {
      "account_id": "0x22222",
      "IMR_withdraw_orders": 0.12,
      "MMR_with_orders": 0.06,
      "average_open_price": 28000.123456,
      "cost_position": -100000.56789,
      "est_liq_price": 120000.654321,
      "fee_24_h": 5.5,
      "imr": 0.12,
      "last_sum_unitary_funding": 50.12,
      "mark_price": 27794.9,
      "mmr": 0.06,
      "pending_long_qty": 1,
      "pending_short_qty": 0,
      "pnl_24_h": 150.75,
      "position_qty": -3,
      "settle_price": 27950.6789,
      "symbol": "PERP_BTC_USDC",
      "seq": 1730181536341943600,
      "timestamp": 1685429350572,
      "unsettled_pnl": 200.5
    }
  ]
}