UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nkXF9YU7xLuRo0806oQq6MRk/r/BWErKcWmRk1qNRWE=' 
WHERE 
  key_id = 'ebdd974515264d52af3023ce135f7409259ed54be26fd838bf30a9769214acf8' 
  AND (
    token = 'nkXF9YU7xLuRo0806oQq6MRk/r/BWErKcWmRk1qNRWE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )