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 }