UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MX2TgaQQ34okorAtjBKD5MIAwZWnrZwdTNq6yXfQelc=' 
WHERE 
  key_id = '8f375b3f15f0c909a9ab3242df18d00643152cbd4924d948c137e40ead6310a2' 
  AND (
    token = 'MX2TgaQQ34okorAtjBKD5MIAwZWnrZwdTNq6yXfQelc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )