I am attempting to update the "CustomerName" custom property via Curl. This property has a drop down list that is used when adding new nodes/devices.

i have looked at how to modify a custom property but it is not translating to curl very well at least as far as I can tell. There seems to be information that suggests using swis command within URI, other info that says to just use the invoke in the URI, and still others to use swis embedded in array in body. I have tried all these and none seem to work.
https://github.com/solarwinds/OrionSDK/wiki/Managing-Custom-Properties
https://github.com/solarwinds/OrionSDK/wiki/REST
I assume the correct swagger POST would be the following:
http://solarwinds.github.io/OrionSDK/swagger-ui/#/Verbs/OrionNodesCustomPropertiesModifyCustomProperty
Does anyone have a good curl command that can update Orion.NodesCustomPropterties/ModifyCustomProperty with "PropteryName" = "ClientName" update "Value" = "abc123"
This is one of many of calls I have attempted. I assume I may have some simple formatting errors in body but I think there is more issues here.
[e0095016@phxmitloic01 ~]$ curl -k --header "Content-Type: application/json" --header "Authorization: Basic YXBpX25ldHdvcm" -d '{"PropertyName":"CustomerName", "Description":"", "Size":"400", "Values":["FIS101"]}' --request POST 172.31.131.109:17778/.../ModifyCustomProperty
{
"Message": "Invalid SWIS uri at character 92: Filter property name not specified for primary filter.\r\nParameter name: uri",
"ExceptionType": "System.ArgumentException",
"FullException": "System.ArgumentException: Invalid SWIS uri at character 92: Filter property name not specified for primary filter.\r\nParameter name: uri\r\n at SolarWinds.Data.Utility.SwisUriParser.ParsingError(String message)\r\n at SolarWinds.Data.Utility.SwisUriParser.HandleFilterPropertyName(Char c)\r\n at SolarWinds.Data.Utility.SwisUriParser.ParseInternal()\r\n at SolarWinds.InformationService.Core.InformationService.Update(String uri, IDictionary`2 propertiesToUpdate)"
}[e0095016@phxmitloic01 ~
]$