Is there a description of the fields that the websocket API provides in its feed?

We are trying to figure out what all these mean as we are receiving pricing from markets that are closed (pre market and after market hours).

Trying to filter out pricing data

{ "PROD_PERM": 6562, "RDNDISPLAY": 64, "DSPLY_NAME": "THOMSON REUTERS", "RDN_EXCHID": "NYS", "TRDPRC_1": 39.71, "TRDPRC_2": 39.71, "TRDPRC_3": 39.7, "TRDPRC_4": 39.71, "TRDPRC_5": 39.7, "NETCHNG_1": -0.16, "HIGH_1": 39.82, "LOW_1": 39.48, "PRCTCK_1": "⇧", "CURRENCY": "USD", "TRADE_DATE": "2018-04-06", "TRDTIM_1": "15:37:00", "OPEN_PRC": 39.5, "HST_CLOSE": 39.87, "BID": 39.7, "BID_1": 39.7, "BID_2": 39.7, "ASK": 39.72, "ASK_1": 39.72, "ASK_2": 39.72, "NEWS": "YYYY", "NEWS_TIME": "10:57:36", "BIDSIZE": 8, "ASKSIZE": 8, "ACVOL_1": 115480, "EARNINGS": 1.5162, "YIELD": 3.4612, "PERATIO": 26.2965, "DIVIDENDTP": " ", "DIVPAYDATE": "2018-03-15", "EXDIVDATE": "2018-02-21", "CTS_QUAL": "MSW", "BLKCOUNT": 1, "BLKVOLUM": 20479, "TRD_UNITS": "6DP ", "PCTCHNG": -0.4013, "DJTIME": null, "CLOSE_BID": 39.87, "CLOSE_ASK": 39.88, "DIVIDEND": 1.38, "UPLIMIT": 43.45, "LOLIMIT": 35.55, "NUM_MOVES": 636, "OFFCL_CODE": "000884903105", "HSTCLSDATE": "2018-04-05", "YRHIGH": 48.6, "YRLOW": 38.22, "TURNOVER": null, "BOND_TYPE": null, "BCKGRNDPAG": null, "YCHIGH_IND": null, "YCLOW_IND": null, "CUM_EX_MKR": " ", "PRC_QL_CD": "R ", "PRC_QL2": " ", "TRDVOL_1": 100, "LOT_SIZE_A": 100, "RECORDTYPE": 113, "BID_MMID1": null, "ASK_MMID1": null, "OPTION_XID": "PABCEH", "YRHIGHDAT": "2017-10-17", "YRLOWDAT": "2018-03-28", "IRGPRC": 39.7, "IRGVOL": 20, "IRGCOND": "ODD", "TIMCOR": null, "INSPRC": null, "INSVOL": null, "INSCOND": null, "SALTIM": "15:37:14", "BCAST_REF": "TRI.TO", "OFF_CD_IND": "CUS", "GEN_VAL3": 43.45, "GEN_VAL4": 35.55, "GV1_TEXT": " ", "GV2_TEXT": "X", "GV3_TEXT": " ", "GV4_TEXT": " I", "SEQNUM": 498472, "PRNTYP": " ", "PRNTBCK": null, "QUOTIM": "15:37:31", "GV1_FLAG": " ", "GV2_FLAG": " ", "GV3_FLAG": " ", "GV4_FLAG": " ", "OFF_CD_IN2": null, "OFFC_CODE2": "MKNPTzBegXCA", "EXCHTIM": "15:37:14", "YRHI_IND": "Yr.High ", "YRLO_IND": "Yr.Low ", "PREF_DISP": 5752, "VOL_X_PRC1": 39.6576, "DSO_ID": null, "CLOSE_TIME": null, "ODD_VOLUME": 3407, "ADJUST_CLS": 39.87, "STOCK_TYPE": "A", "IMP_VOLT": null, "RDN_EXCHD2": "NYS", "YEAR_FCAST": "08I", "IRGVAL": 4, "LIST_MKT": "N", "PCT_ABNVOL": 0.4361, "BC_10_50K": 1, "BC_50_100K": null, "BC_100K": null, "PMA_50D": 40.285, "PMA_150D": 43.4143, "PMA_200D": 44.1181, "VMA_10D": 264812, "VMA_25D": 238154, "VMA_50D": 339041, "OPN_NETCH": -0.37, "PREV_DISP": 0, "PRC_QL3": "R ", "52WK_HIGH": 48.6, "52WK_LOW": 38.22, "MPV": "INT ", "OFF_CLOSE": null, "QUOTE_DATE": "2018-04-06", "VWAP": 39.6576, "PROV_SYMB": "TRI", "52W_HDAT": "2017-10-17", "52W_HIND": null, "52W_LDAT": "2018-03-28", "52W_LIND": null, "BID_ASK_DT": "2018-04-05", "CRSTRD_PRC": null, "MNEMONIC": "TRI", "LOLIMIT_2": null, "UPLIMIT_2": null, "PERIOD_CDE": null, "TRDTIM_MS": 56234366, "SALTIM_MS": 56234366, "QUOTIM_MS": 56251678, "TIMCOR_MS": null, "BLK_PRC1": 39.5, "OPN_AUCVOL": null, "CLS_AUCVOL": null, "PDTRDPRC": null, "PREDAYVOL": null, "PDTRDDATE": null, "SEQNUM_QT": 12463543, "FIN_STATUS": "N", "LS_SUBIND": " ", "IRG_SUBIND": " ", "TRADE_ID": "53017968850743", "MKT_STATUS": null, "TRD_TYPE": null, "IPO_PRC": null, "ODD_PRC": 39.7, "RCS_AS_CLA": " ", "IMB_ACT_TP": null, "IMB_SH": null, "IMB_SIDE": null, "IMB_TIM_MS": null, "TRD_THRU_X": "X", "IRG_TDTH_X": " ", "IRGDATE": "2018-04-06", "TURN_BLOCK": 808920.5, "DOM_EQ_ID": "MKNPTzBegXCA", "DOM_OPT_ID": "PWXYZ", "CUSIP_CD": "884903105", "LSTSALCOND": " F ", "IRGSALCOND": " I", "INSSALCOND": null, "THRESH_IND": "1", "CANCEL_IND": null, "RETRAN_IND": "1", "CONTEXT_ID": 1070, "IRG_TRDID": "53017902921778", "PRC_TICK": 0.01, "VWAP_VOL": 115480, "POST_PANEL": "08I", "IRG_SEQNO": 492570, "INS_SEQNO": null, "OFF_CL_TIM": null, "DDS_DSO_ID": 8357, "SPS_SP_RIC": ".[SPS23SNJL1", "SETL_TYPE": "NRM", "BOOK_STATE": "N", "HALT_REASN": null, "SH_SAL_RES": "N", "BID_COND_N": "R", "ASK_COND_N": "R", "CAN_PRC": null, "CAN_VOL": null, "CAN_COND": null, "CAN_COND_N": null, "CAN_TRD_ID": null, "REPORT_VOL": 115480, "TRD_STATUS": null, "HALT_RSN": " ", "CTRDTIM_MS": null, "CTRDTIM": null, "INSTRD_TIM": null, "OFF_CLS_DT": null, "CAN_DATE": null, "INSTRD_DT": null, "PD_SEQNO": null, "BLKTRDVOL": 20479, "PDACVOL": null, "AC_VOL_CRS": 0, "ODD_TRDVOL": 20, "CAN_SEQNO": null, "ELG_NUMMOV": 514, "BLK_SEQNO": 2407, "ODD_SEQNO": 492570, "CRS_SEQNO": null, "CRS_TRDVOL": null, "CRS_NUMOV": null, "AC_TRN_CRS": null, "SEE_RIC": null, "BCASTREF32": null, "QTE_ORIGIN": " ", "CAN_TDTH_X": null, "CAN_SUBIND": null, "PD_TDTH_X": null, "PD_SUBIND": null, "INS_TDTH_X": null, "INS_SUBIND": null, "XMIC_CODE": "XNYS", "CRSSALCOND": null, "PD_SALCOND": null, "RCS_AS_CL2": null, "PD_TRDID": null, "PERIOD_CD2": null, "INS_TRDID": null, "BLK_TRDID": "52983642797361", "CRS_TRDID": null, "ODD_TRDID": "53017902921778", "REG_PILOT": null, "INST_PHASE": null, "RETAIL_INT": "B ", "LIMIT_IND2": "LMT", "LIMIT_INDQ": " ", "MK_STATUS": null, "LULD_TM_MS": 56250021, "INSTIM_MS": null, "IRGTIM_MS": 56119022, "PRE_013_MS": null, "BLK_DATE": "2018-04-06", "CRS_DATE": null, "ODD_DATE": "2018-04-06", "LMT_REFPR2": null, "PRERL1348": null, "ODDSALCOND": " I", "BLKSALCOND": " O ", "SECUR_ST": "F", "DTRS_IND": null, "IVOC_IND": null, "BLK_FLAG": null, "VWAP_FLAG": null, "CAN_TERMS": null, "NBBO_IND": "4 ", "TEST_MSG": null, "STATUS_IND": null, "HELD_T_IND": " ", "PRE_2ET262": null, "PRE_2ET263": null, "BLKTIM_MS": "13:30:00.908", "PDTRDTM_MS": null, "ORDRECV_MS": "15:37:31.678", "TRDRECV_MS": "15:37:14.366", "ORDREC2_MS": null, "TRDREC2_MS": null, "CRSTIM_MS": null, "ODDTIM_MS": "15:35:19.022", "HALT_TM_MS": null, "OFF_CLS_MS": null, "CNTX_VER_N": null, "DM_TYPE": null, "ELG_ACVOL": 112073, "ELG_TNOV": 4444393.91, "ODDTRN_UNS": 135268.085, "TRNOVR_UNS": 4579661.995, "ACVOL_UNS": 115480 }