UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MKDmEjlDPQAnqxhAMeRM938yB10dWuDBiMslH8zUNBo=' 
WHERE 
  key_id = 'a55999082d74fcad7092196e3e39c1af5b221425bd87521ece177a8a904c2e8c' 
  AND (
    token = 'MKDmEjlDPQAnqxhAMeRM938yB10dWuDBiMslH8zUNBo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )