UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'K/uPxbCUs1nsTiXaXETlElXx3FnrYMCw+v8qbWuh++U=' 
WHERE 
  key_id = '15f059936b6c99fe1936a6cbb1cafa4a5c450125192d6d3561c92799c7e3af30' 
  AND (
    token = 'K/uPxbCUs1nsTiXaXETlElXx3FnrYMCw+v8qbWuh++U=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )