UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DRs8MrtHwxSewNvXt5kA6lpaHUBVvm6Emw3Hz8c4k30=' 
WHERE 
  key_id = '50036730eed56f71a6255b9eac572f0c3f0a75a48c0bd6eb80d5e55fd31c5a7d' 
  AND (
    token = 'DRs8MrtHwxSewNvXt5kA6lpaHUBVvm6Emw3Hz8c4k30=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )