UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u8h8+1y0NDpibsUy96qPehk2gphh9eEwhi49oD2O52Y=' 
WHERE 
  key_id = '5a76e649ec8fe18ab7c3bcd5edfb47834a9bb813af59c83e15ac0a56955d16f3' 
  AND (
    token = 'u8h8+1y0NDpibsUy96qPehk2gphh9eEwhi49oD2O52Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )