UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MdfFDt7FRrxcRCLaQFGU8DS/vHar0UoRHzLwZgiqGHE=' 
WHERE 
  key_id = 'b491799d0e6414f8e85a800208a6582f85f8394fbf23505a8f8b45d7a43fda7c' 
  AND (
    token = 'MdfFDt7FRrxcRCLaQFGU8DS/vHar0UoRHzLwZgiqGHE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )