UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9xT+Ykzi1P+sF6cuqFhYtNhVqi3EiOPxoPcKszomrYE=' 
WHERE 
  key_id = '856e5b59fc4b2fe4cf3514d890f69fb54eb20f462d01571a9cb43fb54295ccf3' 
  AND (
    token = '9xT+Ykzi1P+sF6cuqFhYtNhVqi3EiOPxoPcKszomrYE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )