Authenticate with Binance API using provided API key and secret key.
Determine the appropriate endpoint based on the user's request (e.g., `/sapi/v1/margin/order`).
Construct the API request with the required parameters (e.g., symbol, side, type, quantity, price).
Sign the request using the secret key.
Send the request to the Binance API.
Parse the JSON response from Binance.
Return the result to the user.