A Solidity SimpleStorage contract

SimpleStorage.json

[
	{
		"constant": false,
		"inputs": [
			{
				"internalType": "uint256",
				"name": "x",
				"type": "uint256"
			}
		],
		"name": "set",
		"outputs": [],
		"payable": false,
		"stateMutability": "nonpayable",
		"type": "function"
	},
	{
		"anonymous": false,
		"inputs": [
			{
				"indexed": false,
				"internalType": "uint256",
				"name": "newValue",
				"type": "uint256"
			},
			{
				"indexed": false,
				"internalType": "address",
				"name": "updatedBy",
				"type": "address"
			}
		],
		"name": "storageUpdate",
		"type": "event"
	},
	{
		"constant": true,
		"inputs": [],
		"name": "get",
		"outputs": [
			{
				"internalType": "uint256",
				"name": "",
				"type": "uint256"
			}
		],
		"payable": false,
		"stateMutability": "view",
		"type": "function"
	}
]

SimpleStorage.sol

pragma solidity >=0.4.0 <0.7.0;

// Rinkeby address: 0x49Bb098E781eD5C50D85E82d85cbA1a6F03FD3e6

contract SimpleStorage {
    uint storedData;
    
    event storageUpdate(uint newValue, address updatedBy);

    function set(uint x) public {
        storedData = x;
        emit storageUpdate(x, msg.sender);
    }

    function get() public view returns (uint) {
        return storedData;
    }
}