netstorage/Set-NSUploadAccount.ps1

function Set-NSUploadAccount
{
    Param(
        [Parameter(Mandatory=$true)]  [string] $UploadAccountID,
        [Parameter(Mandatory=$true)]  [string] $Body,
        [Parameter(Mandatory=$false)] [string] $EdgeRCFile = '~\.edgerc',
        [Parameter(Mandatory=$false)] [string] $Section = 'default',
        [Parameter(Mandatory=$false)] [string] $AccountSwitchKey
    )

    $Path = "/storage/v1/upload-accounts/$UploadAccountID`?accountSwitchKey=$AccountSwitchKey"

    try {
        $Result = Invoke-AkamaiRestMethod -Method PUT -Path $Path -EdgeRCFile $EdgeRCFile -Section $Section -Body $Body
        return $Result
    }
    catch {
        throw $_.Exception
    }
}