UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MPRkwh/fjiQJ0U+h/Us0B2P4L+daLX4PNdhuknBAPg0=' 
WHERE 
  key_id = 'a40be6b17ff4344229a73d0894f441e8c2bfd74df8e3d4a8444646339851856d' 
  AND (
    token = 'MPRkwh/fjiQJ0U+h/Us0B2P4L+daLX4PNdhuknBAPg0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )