UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k2gu3smaK7oVY8zsF5qs+WCirWuW6eDJ4jde9UDyCC0=' 
WHERE 
  key_id = '6636c4bb59d4be1194e9c7499a2530f2d15f1da7e53914462858cb62bf27d3ef' 
  AND (
    token = 'k2gu3smaK7oVY8zsF5qs+WCirWuW6eDJ4jde9UDyCC0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )