Transparent Tracking Pixel for Email Open Detection

📌 Description This workflow serves a 1x1 transparent PNG image via a webhook, which can be embedded in an email to track when the email is opened. When the image is loaded by the recipient's email client, the webhook is triggered, optionally capturing a userId to identify who opened the email. 📂 Workflow Steps Webhook Trigger (Request img) Path: /webhook/change-with-your-id Triggered by an HTTP request (e.g. when the image is loaded in an email). Accepts a query parameter id to identify the recipient. Set Base64 Data (Create data pix) Creates a variable data containing a Base64-encoded transparent PNG image (1x1 pixel). Convert to Binary (Create img bin) Converts the Base64 data string int

Help me set up the n8n workflow "Transparent Tracking Pixel for Email Open Detection" (https://n8n.io/workflows/3913). It uses: . Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.