{
  "request": {
    "method": "POST",
    "url": "https://api.backpack.exchange/api/v1/order",
    "headers": {
      "X-API-Key": "<base64-ed25519-public-key>",
      "X-Signature": "<base64-ed25519-signature>",
      "X-Timestamp": "1735689600000",
      "X-Window": "5000",
      "Content-Type": "application/json"
    },
    "body": {
      "symbol": "SOL_USDC",
      "side": "Bid",
      "orderType": "Limit",
      "timeInForce": "GTC",
      "price": "180.50",
      "quantity": "1.5",
      "clientId": 1001,
      "postOnly": true,
      "selfTradePrevention": "RejectTaker"
    },
    "signingNote": "Sign string is alphabetically ordered key=value pairs of the body, prefixed with instruction=orderExecute and suffixed with &timestamp=<X-Timestamp>&window=<X-Window>, signed with the ED25519 private key, base64-encoded into X-Signature."
  },
  "response": {
    "id": "111051090663277568",
    "clientId": 1001,
    "symbol": "SOL_USDC",
    "side": "Bid",
    "orderType": "Limit",
    "timeInForce": "GTC",
    "price": "180.50",
    "quantity": "1.5",
    "executedQuantity": "0",
    "executedQuoteQuantity": "0",
    "status": "New",
    "selfTradePrevention": "RejectTaker",
    "postOnly": true,
    "createdAt": 1735689600123
  }
}