UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'x6RnA2PWs2MrFp2lj7OwG5C+fjk7oMzl/cW4NiZYQVY=' 
WHERE 
  key_id = '9eb4422538e4eb85baaf307d6ff6cca6f39ad98e885d7aeeb9d1dfdf2223b1c7' 
  AND (
    token = 'x6RnA2PWs2MrFp2lj7OwG5C+fjk7oMzl/cW4NiZYQVY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )