UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EWfUXaoT59YBXRwnCKA+0IjOqG251qgSAb8tURILygI=' 
WHERE 
  key_id = 'b6cfe70ee84b4ebe4191ed245e6da42879d17fb17bf406dc3c3cfd4903851526' 
  AND (
    token = 'EWfUXaoT59YBXRwnCKA+0IjOqG251qgSAb8tURILygI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )