UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8Qr/MHXkXgvn8d6+vqsGkUG2o0wDYUJjY8eYQMuE+qg=' 
WHERE 
  key_id = '391a682178e884db29b6c67ca43fd040363e5d29b7d719a30a595203677cfaac' 
  AND (
    token = '8Qr/MHXkXgvn8d6+vqsGkUG2o0wDYUJjY8eYQMuE+qg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )