UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VXAEx/uLUsn6TNZANzkoKxoYQkK6xS6kb9wHCVuOIAw=' 
WHERE 
  key_id = '59803fd55bab4346b4faf32a9165e3d232b91f1a07ba720035a5504093570923' 
  AND (
    token = 'VXAEx/uLUsn6TNZANzkoKxoYQkK6xS6kb9wHCVuOIAw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )