@FitbitDev Looking at the "Subscriptions - X-Fitbit-Signature Header" procedure, I see that the "signature is first BASE64 encoded and then URL encoded" .
Does "URL encoded" mean "percent encoding" from RFC3986?
dev.fitbit.com/build/referenc…#section-2.1" target="_blank" rel="nofollow noopener">tools.ietf.org/html/rfc3986#s…