UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Z7qRYlJoo9Pss9exVBi/YrIArQk0rNfVUshaD93iCxw=' 
WHERE 
  key_id = '535a18c00883c6fc23eda79202874331eef4092d249f5e0b09f77990951477b4' 
  AND (
    token = 'Z7qRYlJoo9Pss9exVBi/YrIArQk0rNfVUshaD93iCxw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )