Updox HMAC Authentication2

For

{
    "auth": {
        "applicationId": "updox",
        "applicationPassword": "password",
        "accountId": "",
        "userId": ""
    }
}

the HMAC to-be-hashed message is defined as: [vendorId]:[vendorPassword]:[updox-timestamp]

{
    "auth": {
        "applicationId": "updox",
        "applicationPassword": "password",
        "accountId": "100",
        "userId": ""
    }
}

the to-be-hashed message is defined as: [vendorId]:[vendorPassword]:[accountId]:[updox-timestamp]

{
    "auth": {
        "applicationId": "updox",
        "applicationPassword": "password",
        "accountId": "100",
        "userId": "100"
    }
}

the to-be-hashed message is defined as: [vendorId]:[vendorPassword]:[accountId]:[userId]:[updox-timestamp]