UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RMumoA+WRsD8qrofwGDZgW9WvSek0JobWveqnUwEzIM=' 
WHERE 
  key_id = '3c6a1743e37628f7605aed258c7bb639fe14e984270a436ad04e21a3ad3b1af7' 
  AND (
    token = 'RMumoA+WRsD8qrofwGDZgW9WvSek0JobWveqnUwEzIM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )