You must authenticate when subscribing to the WebSocket Feed the very first time.To authenticate, include the authentication fields listed below on the subscribe message.
Timestamp, in epoch seconds, when the request is made. Must be within 30 seconds of making the request.
passphrase
Passphrase affiliated with the API Key
signature
HMAC SHA-256 signature with the API Key secret on the concatenated string TIMESTAMP + KEY + “CBINTLMD” + PASSPHRASE. Example: 1744594506glK4uG8QRmh3aqnJCBINTLMDpassphrase