contract CampaignFactory {
  address[] public deployedCampaigns;

  function createCampaign (uint minimum) public {
    address newCampaign = new Campaign(minimum, msg.sender);
    deployedCampaigns.push(newCampaign);
}

  function GetDeployedCampaigns() public view returns (address[]) {
    return deployedCampaigns;
    }
}

contract Campaign {
    address public manager;
    uint public minimumContribution;
    constructor (uint minimum, address creator) public {
        manager = creator;
        minimumContribution = minimum;
    }
}

const accounts = await web3.eth.getAccounts();
        await factory.methods.createCampaign("1").send({
          from: accounts[0]
        });

const contarct = new web3.eth.Contract(abi, address)
let web3 = new Web3(new Web3.providers.HttpProvider("https://rinkeby.infura.io/<token>"))
var privateKey = new Buffer('6e4702be2aa6b2c96ca22df40a004c2c9...', 'hex')

var functionName = 'createCampaign'
var types = ['uint']
var args = [1]
var fullName = functionName + '(' + types.join() + ')'
var signature = CryptoJS.SHA3(fullName,{outputLength:256}).toString(CryptoJS.enc.Hex).slice(0, 8)
var dataHex = signature + web3.eth.abi.encodeParameters(types, args)
var data = '0x'+ dataHex

var nonce = web3.utils.toHex((web3.eth.getTransactionCount('0x46fC1600b1869b3b4F90971...')))
var gasPrice = 100000
var gasLimitHex = web3.utils.toHex(3000000)
    var rawTx = { 'nonce': nonce,
'gasPrice': gasPrice,
'gasLimit': gasLimitHex,
'from': '0x46fC1600b1869b3...',
'to': '0x8be14cf0b28c3d88d229c493...', //Address of deployed contract (CampaignFactory)
'data': data}
    var tx = new Tx(rawTx)
    tx.sign(privateKey)
    var serializedTx = '0x'+tx.serialize().toString('hex')
    web3.eth.sendSignedTransaction(serializedTx, function(err, txHash){ console.log(err, txHash) })

null '0x0fad927a77b7f03a32f476d3d8d4027f7daa19270f5c98d1c11156a31360c04b'