UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'bMhn2mLexFGBi5kezNTRwCjRFNj7hMCSXSu4+gHOEa8=' 
WHERE 
  key_id = '81acd642408fda34ca0b1b8b729bd354cd0112291f6ab22a16e60a67c0fad1d4' 
  AND (
    token = 'bMhn2mLexFGBi5kezNTRwCjRFNj7hMCSXSu4+gHOEa8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )