UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'C+PsRq8lqkOVxWGs+CInTA6edZXWyHGEURMfVtt/OTI=' 
WHERE 
  key_id = '89b82d6579ff314ccdf011cb8fabd7740421b274a450dbef8f9f95534e7c7c7c' 
  AND (
    token = 'C+PsRq8lqkOVxWGs+CInTA6edZXWyHGEURMfVtt/OTI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )