The MIC Exchange code. Set to DEFAULT for stocks, forex & options. For Futures, valid values are: XCME, XEUR, XICE, XLIF, XNYB, XNYM, XASX, XCBF, XCBT, XCEC, XKBT, XSES. See details at http://www.iso15022.org/MIC/homepageMIC.htm
The MaturityMonthYear e.g. '202503' (March 2025), or if the contract requires a day: '20210521' (May 21, 2025)
{ "Symbol": "string", "Currency": "string", "SecurityExchange": "string", "SecurityType": "string", "MaturityMonthYear": "string", "PutOrCall": 0, "StrikePrice": 0.1, "PriceMultiplier": 0.1 }