Get box sign request by id
Retrieves the details of a specific Box Sign request by its unique ID. Returns comprehensive information about the signature request including: - Request status (e.g., 'converting', 'created', 'sent', 'viewed', 'signed', 'declined', 'cancelled', 'expired', 'error_converting', 'error_sending') - Signers information with their email, role, decision status, and embed URLs - Source files included in the request - Signed document copies available for download (when completed) - Signing log reference - Request timestamps and sender information Note: Requires Box Sign to be enabled for the enterprise account.