UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/ttvwfV6Y358ONjzmsLWbV+8fh/2tA3moweWAUrHhVY=' 
WHERE 
  key_id = 'f497e765d523d0482d99e811de9947d51bfb9949f429d1a6cf8c86207ff3e779' 
  AND (
    token = '/ttvwfV6Y358ONjzmsLWbV+8fh/2tA3moweWAUrHhVY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )