UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xBj4AkxXX8+ZLqERQqBX9IC4IvV5CYrOU8Dgn+Bod8M=' 
WHERE 
  key_id = '68f9c896fb8c90e860fef317df5b0bab8bc12a08afc6a6398bda55045b351a3f' 
  AND (
    token = 'xBj4AkxXX8+ZLqERQqBX9IC4IvV5CYrOU8Dgn+Bod8M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )