const sig = req.headers[HTTP_SIGNATURE.HEADER_NAME] as string
if (sig && sig.startsWith('Signature ') === true) req.headers[HTTP_SIGNATURE.HEADER_NAME] = sig.replace(/^Signature /, '')
const sig = req.headers[HTTP_SIGNATURE.HEADER_NAME] as string
if (sig && sig.startsWith('Signature ') === true) req.headers[HTTP_SIGNATURE.HEADER_NAME] = sig.replace(/^Signature /, '')