UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5rWRqZQU53Npl4iykYvfKndLiGn50WWUCHbJVe3CiAI=' 
WHERE 
  key_id = 'afda6263c784915dd30857d8d6c2e088fa21dfec141e89fd16ff5dc1e54a6d0f' 
  AND (
    token = '5rWRqZQU53Npl4iykYvfKndLiGn50WWUCHbJVe3CiAI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )