UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0BDYF43aQ7vVXvMe4viwDS4vc5KNNdzSmk6dfvokedM=' 
WHERE 
  key_id = 'b6696f8d96b3a4c1fe0d2b654432228731929b96c59abdfd8a6207f0414234af' 
  AND (
    token = '0BDYF43aQ7vVXvMe4viwDS4vc5KNNdzSmk6dfvokedM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )