UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SmHdIRrGWqwiUKI/igWaFgoT+N+vu3Pix03f2cvVuMk=' 
WHERE 
  key_id = 'c4e965c5ca0f2acfdae3b1b5242dcc4210972151872d76874f35d61c74437905' 
  AND (
    token = 'SmHdIRrGWqwiUKI/igWaFgoT+N+vu3Pix03f2cvVuMk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )