UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '52mSrCbOhWZQYvYmGO6BpTOGK24BO56/WUUW4a569OM=' 
WHERE 
  key_id = '577a1000e4bfc87b3c57e4350edadb3844bb4b9db693037afdc284de6e5e06a4' 
  AND (
    token = '52mSrCbOhWZQYvYmGO6BpTOGK24BO56/WUUW4a569OM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )