UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u0PNf2N4kcO6PybzkWSscd1ttg682wI6Lh98VlzuVOE=' 
WHERE 
  key_id = '840463439b3a9af3a20baa3e594480a739e53af1ba7deaf6b9ba46c584b01845' 
  AND (
    token = 'u0PNf2N4kcO6PybzkWSscd1ttg682wI6Lh98VlzuVOE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )