SctiesSttlmCondModStsAdvc
                Mandatory
                ReqRef
                Mandatory
                Account Owner
AcctOwnr
                Optional
                Definition: Party that legally owns the account.
Type: PartyIdentification156
Mandatory
                LEI
                Optional
                SfkpgAcct
                Optional
                BlckChainAdrOrWllt
                Optional
                ReqDtls
                Optional
                PrcgSts
                Mandatory
                SplmtryData
                Repetition (0..n)