UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UkQ3VPsMHL7jbTZaFVk8TNPrDArRCwzUZd1ugSKCagI=' 
WHERE 
  key_id = '7c4962e68d327438af87ef6de02817fb9517cb99d58091e027118706bebf444b' 
  AND (
    token = 'UkQ3VPsMHL7jbTZaFVk8TNPrDArRCwzUZd1ugSKCagI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )