        userProposalEth[_proposalId][msg.sender] += msg.value;
        userProposalFractions[_proposalId][msg.sender] += _amount;
        uint256 userFractions = userProposalFractions[_proposalId][msg.sender];
        IFERC1155(token).safeTransferFrom(address(this), msg.sender, id, userFractions, "");
        uint256 userEth = userProposalEth[_proposalId][msg.sender];
        payable(msg.sender).transfer(userEth);
        IERC1155(token).safeTransferFrom(address(this), msg.sender, id, _amount, "");
        uint256 tokenBalance = IERC1155(token).balanceOf(address(this), id);
        ...
        IERC1155(token).safeTransferFrom(address(this), proposer, id, tokenBalance, "");
