UserManagerERC20

stakeWithERC20Permit

function stakeWithERC20Permit(uint256 amount, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external

@dev Stake using ERC20 permit @param amount Amount @param deadline Timestamp for when the permit expires @param v secp256k1 signature part @param r secp256k1 signature part @param s secp256k1 signature part