UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DAFmYIfhdJjvdpxUGallp4RCzi1UngExpO4cQivr0VA=' 
WHERE 
  key_id = '853e07edb2500379136d6cdf3a6790281eb658a597254810d48092b74e0f7c14' 
  AND (
    token = 'DAFmYIfhdJjvdpxUGallp4RCzi1UngExpO4cQivr0VA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )