UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'prMuNu6hAw6p9KYQSYKS9zjrbLEHVqNGdFtiVUc99cU=' 
WHERE 
  key_id = 'eaf08e42b6a92fed8712493974741bf895301b3226a971d34c9f365d3c751004' 
  AND (
    token = 'prMuNu6hAw6p9KYQSYKS9zjrbLEHVqNGdFtiVUc99cU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )