UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MdFqjvxV5yOLxfXX0uSya6cRNKYbcW/HZVgM6D9DELw=' 
WHERE 
  key_id = 'ec3c990946881bf1b97bd8c44ce3393cefa33eded8bcf4cd903888b17d50d121' 
  AND (
    token = 'MdFqjvxV5yOLxfXX0uSya6cRNKYbcW/HZVgM6D9DELw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )