UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Hpu79Wopt+ZrRyUDtYCnJQtvbu2IGSWs0NdP8fSzRoQ=' 
WHERE 
  key_id = '0cfa4bb36517c615736bfaee86a58b2f658fa4114a2cd4fd70b4c041e5506677' 
  AND (
    token = 'Hpu79Wopt+ZrRyUDtYCnJQtvbu2IGSWs0NdP8fSzRoQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )