UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kgZpmOS4zoXdPQWqEn7Oi6+uN3ppcwAvXytQ59o+jEA=' 
WHERE 
  key_id = '21230ffabb9247ff5d8cd6955319ac529214738d5344e553ac4a456f2fed5a11' 
  AND (
    token = 'kgZpmOS4zoXdPQWqEn7Oi6+uN3ppcwAvXytQ59o+jEA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )