UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'iQRQerANzptL6AiAukRnflWeOc88fsLIYjFyVZt7SdE=' 
WHERE 
  key_id = 'a79542fea71a2a3b82f3fb236443cd16f42312dcf325eb5389d829de42a72113' 
  AND (
    token = 'iQRQerANzptL6AiAukRnflWeOc88fsLIYjFyVZt7SdE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )