Best Practices for Authenticating Shopify Web pixel event Request

Hi There,
We are passing analytics data from our shopify web pixel to our server. However, other app extensions web pixel does not provide a session token or any other authentication parameter from Shopify. Due to this we do not have any built in functionality for authentication.

We are trying to use an authentication token configured via web pixel settings in toml file. Is this considered as best practise or is there any other more efficient way to authenticate or validate web pixel events from shopify?
Thank you in advance for your help!