UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Z+hoCc8EbKez7Bt8Hgahp0jWgXHRQ2+iTKNQsMQoe/o=' 
WHERE 
  key_id = '27b7ae70f33054f9354191189fea50616dea65e6512b7a5a0cd5e4fea8140374' 
  AND (
    token = 'Z+hoCc8EbKez7Bt8Hgahp0jWgXHRQ2+iTKNQsMQoe/o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )