UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dQsIisk5cHyveTAJNqHqxen8hnbBQlGErasQ5maogiA=' 
WHERE 
  key_id = '50943850bf625711c1f1b548357cf5d5d9dca1f25261a143c6841c7c7eb23640' 
  AND (
    token = 'dQsIisk5cHyveTAJNqHqxen8hnbBQlGErasQ5maogiA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )