Tag#	Field Name	Required	Comments
Standard Header		Yes	MsgType <35> = X
262	MDReqID	Yes	Unique identifier for Market Data Request (V) this message is in response to
268	NoMDEntries	Yes	Number of entries in this message
=>279	MDUpdateAction	Yes	Type of market data update Valid values: ▪ 0 = New ▪ 1 = Change ▪ 2 = Delete
=>269	MDEntryType	Yes	Type of market data entry Valid Values: ▪ 0 = Bid ▪ 1 = Offer ▪ 2 = Trade ▪ 4 = Opening Price ▪ 5 = Closing Price ▪ 7 = Trading Session High Price (24 hours) ▪ 8 = Trading Session Low Price (24 hours) ▪ B = Trade Volume (24 hours)
=>55	Symbol	No*	Currency-pair. It is identified only for first market data entry
=>270	MDEntryPx	Yes	Price of market data entry
=>271	MDEntrySize	Yes*	Number of units available (or the maximum trade size) at the time the market data snapshot was generated. Required when MDEntryType <269> is Bid (0), Offer(1), Trade(2), Trade Volume (V)
=>272	MDEntryDate	Yes	Date of Market Data Entry i.e. yyyyMMdd
=>273	MDEntryTime	Yes	Time of Market Data Entry (HH:MM:SS.sss)
Standard trailer

RAW
8=FIX.4.4|9=167|35=X|34=4|49=MarketDataGateway|52=20230623-05:39:26.897|56=F5LJABG1KED2K8DT|262=1|268=1|279=1|269=1|55=BTC-USDC|270=30072.00|271=0.59840|272=20230623|273=05:39:26.882|10=158|

HEADER
8                 BeginString:FIX.4.4
9                  BodyLength: 167
35                    MsgType: Logout (X)
34                  MsgSeqNum: 4
49               SenderCompID: MarketDataGateway
52                SendingTime: 20230623-05:39:26.897
56               TargetCompID: F5LJABG1KED2K8DT

BODY
262                   MDReqID: 1
268               NoMDEntries: 1
279            MDUpdateAction: New (1)
269               MDEntryType: Bid (1)
55                     Symbol: BTC-USDC
270                 MDEntryPx: 30072.00
271               MDEntrySize: 0.59840
272                 TradeDate: 20230623
273               MDEntryTime: 05:39:26.882

TRAILER
10                   CheckSum: 158