UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VTplOUB3k7uVLPjuafBLvJVby2U86zYTnULNkISspKE=' 
WHERE 
  key_id = '7b6f801d2010fef333bc68f5bacfcff716ad760dc7b744cb93fcae4c842378e5' 
  AND (
    token = 'VTplOUB3k7uVLPjuafBLvJVby2U86zYTnULNkISspKE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )