Index Summary Message Example (only last sale)

{
"msgType": "S",
"sendTime": 1646069113466,
"transTime": 1646069112466,
"effectiveDate": "20220228",
"summaryType": "1", // SOD
"seq": 100,
"sym": "TSTSYM",
"values": [
 {
 "type": "3",
 "value": 1.23
 }
]
}