Interact with Signet onchain advertising on Hunt Town. Use when the user wants to check spotlight ad prices, list current ads/signatures, or post a URL to the Signet spotlight. Supports x402 payment protocol for programmatic ad placement by AI agents.

在Hunt Town上与Signet链上广告互动。适用于用户查询热门广告价格、查看当前广告或签名，或向Signet热门位置发布URL。支持x402支付协议，实现AI代理的程序化广告投放。