UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '794KxX/6KZM8GnO+Qv3EN9wtCoTLoETuZWRvoHcueAk=' 
WHERE 
  key_id = '28ab665817ea0caf1e1372dc16e63e760200c57d1f550d1a0a09c58cd5b8976d' 
  AND (
    token = '794KxX/6KZM8GnO+Qv3EN9wtCoTLoETuZWRvoHcueAk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )