UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R5itjKpa1oRGnh6KbUwzn+QTzHaP8Q2NSgdmX8cCuIU=' 
WHERE 
  key_id = '53bee141d02b9447549ca9bcf1fb636378de4d22b7e8d36cc82efa9c77f3e243' 
  AND (
    token = 'R5itjKpa1oRGnh6KbUwzn+QTzHaP8Q2NSgdmX8cCuIU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )