Update Signature Request
Authentication
Basic authentication of the form Basic <username:password>.
Bearer authentication of the form Bearer <token>, where token is your auth token.
Path parameters
Request
The new email address for the recipient.
This will generate a new signature_id value.
NOTE: Optional if name is provided.
The new name for the recipient.
NOTE: Optional if email_address is provided.
The new time when the signature request will expire. Unsigned signatures will be moved to the expired status, and no longer signable. See Signature Request Expiration Date for details.