UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6pfq3LXDOR+3ou8evUqn76Gz2mOdhwfEdwrq4xCkHgE=' 
WHERE 
  key_id = '97dbddb04848972f6eaa39a510c30fdddcdaab1779572dfec96dfb1fce396450' 
  AND (
    token = '6pfq3LXDOR+3ou8evUqn76Gz2mOdhwfEdwrq4xCkHgE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )