// File: contracts/GetSet.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.7.3;

contract GetSet {
    mapping(address => mapping(string => string)) _userData;
    
    function setUserData (string memory key, string memory value) public {
        _userData[msg.sender][key] = value;
    }
    
    function getUserData (address userAddress, string memory key) public view returns (string memory) {
        return _userData[userAddress][key];
    }
}