UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kxCxmD2DifxVh19i5/b7ITFXrJL87NWY6boznkeZQfQ=' 
WHERE 
  key_id = 'a43d6f0f1ae689ad6a85c1476a03461a4e2de08beae3907771872d1b071e9481' 
  AND (
    token = 'kxCxmD2DifxVh19i5/b7ITFXrJL87NWY6boznkeZQfQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )