UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PDvh5OHH51dfgCjEp3NNAWUptboam8hS1CDtDgdFGxc=' 
WHERE 
  key_id = '3935bece5a84c44f2eda7b8be59fe36d49cd537b761d25916ab380c0cbeb9829' 
  AND (
    token = 'PDvh5OHH51dfgCjEp3NNAWUptboam8hS1CDtDgdFGxc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )