UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6lDUdVSzpdgxzHp2+fBhXyT5yC5aqm2oOwKMO5Lgj+c=' 
WHERE 
  key_id = '6915891e7e65a0534ebdb9997416f9063fd3ac89f8d745d4711ead0f53698468' 
  AND (
    token = '6lDUdVSzpdgxzHp2+fBhXyT5yC5aqm2oOwKMO5Lgj+c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )