UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'TU6RAMkv5ADJiRp93LIsARo6zJDlbzXHTK1sPp+tO30=' 
WHERE 
  key_id = '51b4ccb7342c5255f79d10579695bcabb9d05aae168e97f8e29a708578fa42f6' 
  AND (
    token = 'TU6RAMkv5ADJiRp93LIsARo6zJDlbzXHTK1sPp+tO30=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )