UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'O399zIWbrlEsaLyjoucX8KjTPFB1iTgC/FYadDs+qug=' 
WHERE 
  key_id = '31f3120bc27b158cd9c3e0ef7051814b708e5fbfdb0ff75e25fffbc73c5f17cd' 
  AND (
    token = 'O399zIWbrlEsaLyjoucX8KjTPFB1iTgC/FYadDs+qug=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )