UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'bt/n4eU0Me0Me5ktr6fId0EDhtoL/7WYrj673UX1XHE=' 
WHERE 
  key_id = '331f8059cf7488adf5aac3039a519bcb13a85ea38b352bffb25b6525ed89fef7' 
  AND (
    token = 'bt/n4eU0Me0Me5ktr6fId0EDhtoL/7WYrj673UX1XHE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )