UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UDYDo46g11JemrxmnYGEazePHjKrrDi9YTgc08uRM5Q=' 
WHERE 
  key_id = '4c15f34452d876ac12caf4db59dc4dbc824d314515db2b01f57b08a30d9342a5' 
  AND (
    token = 'UDYDo46g11JemrxmnYGEazePHjKrrDi9YTgc08uRM5Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )