UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yF1UYESjcuhdWRoTh28AHWuE5mDPTA9GvDeIuRw3OUw=' 
WHERE 
  key_id = 'c6305918ebc9fc21162602616273cb878bafa939a7102de53976196aa8aa90d1' 
  AND (
    token = 'yF1UYESjcuhdWRoTh28AHWuE5mDPTA9GvDeIuRw3OUw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )