Most mobile carriers allow you to forward suspicious texts to 7726 (SPAM) to help block the sender.
If you received this via SMS or email, it is highly likely a designed to see if your number or email is active. Recommended Actions 540363a697a81af831671862184tty3ff8gkdzswvab9u7h...
Responding confirms that your number is active, which can lead to even more spam messages. Most mobile carriers allow you to forward suspicious
Use the Google Messages spam protection or the Apple reporting feature to block and report the sender. 540363a697a81af831671862184tty3ff8gkdzswvab9u7h...
You can use tools like the F-Secure Text Message Checker to analyze the content if you're unsure.