UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BM6IY8saSHRg42BNEGEBVwq68A03+QxK8uKFveuJU/k=' 
WHERE 
  key_id = 'd8c8ee8b899b93f2a62116c173481fe209859e542b3c1caa17c55917016064b3' 
  AND (
    token = 'BM6IY8saSHRg42BNEGEBVwq68A03+QxK8uKFveuJU/k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )