UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6joxcb0XvaqyQKq3HEgY81YC6fi4NcDC/60ApjoCaKs=' 
WHERE 
  key_id = '8d28c4ca7dbb5973432f5f3af814f21ee0eb49574b28cc15533539b959bd9b73' 
  AND (
    token = '6joxcb0XvaqyQKq3HEgY81YC6fi4NcDC/60ApjoCaKs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )