UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'j4bBVsSQyx2Cud3Y5I10VBVwty2fkv8GAlfISGFY5UE=' 
WHERE 
  key_id = 'b76ceb71bc9b47a9ca56ea69c0c7080346ceb6b2b5b9d655454721121231eba0' 
  AND (
    token = 'j4bBVsSQyx2Cud3Y5I10VBVwty2fkv8GAlfISGFY5UE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )