Signature request swapping for emaid on uniswap...

I am wanting to swap for emaid on uniswap. After entering the amount I select “sign and swap”, then Metamask presents a “Signature request”, saying “Only sign this message if you fully understand the content and trust the requesting site.” below that it says, "Amount: " and a ridiculously large 50 digit number. then it says “expiration:” and a ten digit number looking nothing like a date or time.

when the transaction gets to my trezor hardware wallet, the wallet says, “no data, sign at your own risk” At that point I aborted the transaction.

Just asking for help in understanding what is going on here. Is this normal? I do not remember anything like this in previous swaps I have made on uniswap.

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This is normal, at the first touch with a smart contract you have one approving transaction for the maximum number of tokens (the big number) and a second transaction for the specific number of tokens you are buying/selling. UniSwap’s smart contract is secure, you won’t have a problem (always check if the frontend you use is legitimate!)

Privacy. Security. Freedom


This is called allowance, which you could sign every time or put it only at the number that you feel comfortable with.