UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'TV+5xIAHC5SZYf2vYhKA11yPlpY5eYnaNiUhVuBljOk=' 
WHERE 
  key_id = '51f5313464db24201d5a7d4e2d4eb80d9215b7cb202df9cdc612da79c7605253' 
  AND (
    token = 'TV+5xIAHC5SZYf2vYhKA11yPlpY5eYnaNiUhVuBljOk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )