UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Kp6w4EpsQ5jU8MzIx/iWSVxn6DXlHy3tVSXaXk19/DA=' 
WHERE 
  key_id = '995ff84b47ef77017509c844fba02cb66bc70ad30cf12dfc71ad78295abc9937' 
  AND (
    token = 'Kp6w4EpsQ5jU8MzIx/iWSVxn6DXlHy3tVSXaXk19/DA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )