UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u1BDPGnkwA4XWUg9dr5CBGpSuDpxy4+NjNPCUd2lOww=' 
WHERE 
  key_id = '51f02513f30788a8af8b4754d25ab3e8aeb8c3956ea60138a4bc438bec23c656' 
  AND (
    token = 'u1BDPGnkwA4XWUg9dr5CBGpSuDpxy4+NjNPCUd2lOww=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )