UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Sm/ff//dgmiEw3eR8pejB8IKMvTTgIktmUX2DzPhu0s=' 
WHERE 
  key_id = '20c8e5263f9411758b559a24899b97fb3b68f21d637267a9fa69d67c4f6d8bc8' 
  AND (
    token = 'Sm/ff//dgmiEw3eR8pejB8IKMvTTgIktmUX2DzPhu0s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )