57012: Signature invalidPositive FeedbackNegative FeedbackERROR: 57012error-57012 page anchorPositive FeedbackNegative FeedbackPROGRAMMABLE SMSERROR Descriptiondescription page anchorPositive FeedbackNegative FeedbackSignature invalid Possible Causespossible-causes page anchorPositive FeedbackNegative FeedbackRequest signature passed in X-Registry-Signature header is invalid Possible Solutionspossible-solutions page anchorPositive FeedbackNegative FeedbackConfirm signature consists of WebhookURL + canonicalized JSON payload and signed with HMAC-SHA1.