UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Vv8dKHIVhZKBVQnqhiCf9ydED7RctFJ2SZIq1q6XKuM=' 
WHERE 
  key_id = '2cc8134d066c4636eb1afa94d9abdddfdebf7b1dd9a19d2ef5c305a8f2e593e9' 
  AND (
    token = 'Vv8dKHIVhZKBVQnqhiCf9ydED7RctFJ2SZIq1q6XKuM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )