UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zA6QqBbADbc+Xk6fK0aRkBwKAziEC5I1KX2gdJ9Nrl0=' 
WHERE 
  key_id = 'c3eee9f3e1f459cb7da72a2a161bac3283febf2bc927e801954502cf674552be' 
  AND (
    token = 'zA6QqBbADbc+Xk6fK0aRkBwKAziEC5I1KX2gdJ9Nrl0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )