UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vWKLWBDLL5lOyV0gNQravZ/a/MYU1i+N0BkvkJCo7Nc=' 
WHERE 
  key_id = '893a41bcccd4cfc1cac0955beb64340f7a64a7e0532a9d28175cbb0f4c9943a5' 
  AND (
    token = 'vWKLWBDLL5lOyV0gNQravZ/a/MYU1i+N0BkvkJCo7Nc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )