Market Snapshot Message Example

{
 "m" : "MM",
 "to" : 478000000,
 "sy" : "TESTA",
 "ut" : 1634534200,
 "bP" : "1.00",
 "bS" : 100,
 "aP" : "2.00",
 "aS" : 200,
 "tP" : "1.50",
 "tS" : 150,
 "tC" : "O",
 "v" : 300,
 "h" : "T",
 "s" : 120030
}