UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PS663ctVqRKSi0ahBApMJNmxjI0OEuh7YOQGpKIfQvI=' 
WHERE 
  key_id = 'c21843c28354aa09d07463a7867c737432b66edd1807ed969a5cedad11a220a3' 
  AND (
    token = 'PS663ctVqRKSi0ahBApMJNmxjI0OEuh7YOQGpKIfQvI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )