UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MemR8O4D4BxIcC8jLCv7fEma4Vew8N92TRzLPFPnWSo=' 
WHERE 
  key_id = 'a8d9f80ca802724083f252c4b2f72ced5734635b53a328c10cec5967281c29e3' 
  AND (
    token = 'MemR8O4D4BxIcC8jLCv7fEma4Vew8N92TRzLPFPnWSo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )