UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 't5V7r5hJpPzf4NNoGSNtY3kBcomeK3ePGSN4hMMcmTQ=' 
WHERE 
  key_id = '21be5d9c13e639fbf667d6b27d871909320e917be9946f6457cbb2d69fef6884' 
  AND (
    token = 't5V7r5hJpPzf4NNoGSNtY3kBcomeK3ePGSN4hMMcmTQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )