Attributes of Custom Script, allowed attributes - Path,Command,SHA256,ExecutionLevel,WaitTime,PassResults,SuccessMsg,FailureMsg,ProgressMsg,Description,DownloadURL,ValidateURLCert,ScriptExecutionTimeOut,SignerName (e.g. {"Path": "/home/aruba/scripts","SHA256": "cfd6...f7ca","ExecutionLevel": "User","Command": "runscript.sh","SignerName": "signer"})