UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'j6iraW9GQNAXU/49o3OgzaAEXhumwnOsvFb8K2aGW9Q=' 
WHERE 
  key_id = '13b9d17ee070c7ad2eac4df3255064ced85fd0f5d1c76889d953001818f26be7' 
  AND (
    token = 'j6iraW9GQNAXU/49o3OgzaAEXhumwnOsvFb8K2aGW9Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )