UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'JtrQDCvYhEu3GTAWuf8+bOxVS1khbLge1ckW/XIRMvU=' 
WHERE 
  key_id = 'a18bad6f6c70d49337c52e4323fe317d93f6c8b2baf94a856cd11cbf115cff80' 
  AND (
    token = 'JtrQDCvYhEu3GTAWuf8+bOxVS1khbLge1ckW/XIRMvU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )