UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cELknMfgA/PDvdDUtiWbDRFSb/b3ZiX8tVSsIk8ploA=' 
WHERE 
  key_id = '3f9c956fd75fc7ef3911ba9565cbea10155b8d07ced837630a59bcbffc69970a' 
  AND (
    token = 'cELknMfgA/PDvdDUtiWbDRFSb/b3ZiX8tVSsIk8ploA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )