Time in seconds since the epoch. Use this value to check whether the request is within a reasonable window of the current time. Usually less than 5 minutes.
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magic-hour-event-timestamp: 1729314984
HTTP headers are case insensitive
Using the header to verify the request ensures that the request is authentic. However, the header verification is not required to receive webhook events.
Compare the computed signature value against the header value and ensure they are identical. And
verify that the timestamp is within a reasonable window.