UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3ehvCXgpLjpRae7pm1lfnmWS06eIo1rhlzuYDWoQ8b0=' 
WHERE 
  key_id = '6948b273dd4e18ac94d467c5dd377e8350758b49b1b1d3f00bedbf439c69b0e1' 
  AND (
    token = '3ehvCXgpLjpRae7pm1lfnmWS06eIo1rhlzuYDWoQ8b0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )