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The flows on the other pages build and sign these for you. Use the builders directly when you sign with your own stack, or to check what a wallet is asked to sign. The builders come from .../typed-data. Each EIP-712 builder takes the deployment and returns typed data. Two rows differ: the key approval is a Sign-In with Ethereum text message, not typed data, and Hyperliquid’s SendAsset is built from the root exports bridgeAction and hyperliquidNetwork.

Helpers

What each message means, and when a flow asks for it, is on Signatures and quote life.