UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YsNhvwzxbfIQJ/69b0JTIkH8aGiJeZ8jMTklrkdFw0o=' 
WHERE 
  key_id = 'b484ec70a733e2689651b6837fb76f5da71412c7ce44b029a5a2f27e34e370d4' 
  AND (
    token = 'YsNhvwzxbfIQJ/69b0JTIkH8aGiJeZ8jMTklrkdFw0o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00045