UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VpSRXrSL7N3ouqtTTNI9zJCfRvPe9rRh/gTE8fDY6OE=' 
WHERE 
  key_id = 'af9496a764b56a38a187a6ae1e108269524500e9af85b53446c6ffd2a7c151d8' 
  AND (
    token = 'VpSRXrSL7N3ouqtTTNI9zJCfRvPe9rRh/gTE8fDY6OE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )