UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WBOtG8OflGpJvp/HPrQuLlhgYe8QjXOhRjsJn7FunWQ=' 
WHERE 
  key_id = '252ad90dee1a85b54e7afc6e11b67bd47a3dc54a50883e2b23512872c11f4b38' 
  AND (
    token = 'WBOtG8OflGpJvp/HPrQuLlhgYe8QjXOhRjsJn7FunWQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )