Transaction Object

No	Name	Type	Mandatory	Min Length	Max Length	Description
1	mode	Enum	C	1	20	Transaction Mode. Default value is AUTHCAPTURE
2	sessionId	Alphanumeric	C	64	64	Session Id from Three DS Initiation response. Mandatory for Three DS Authentication Payer
3	fdsId	Alphanumeric	C	1	40	Fds Id
4	acquirerId	Alphanumeric	C	1	40	Acquirer Id

"transaction": {
    "mode": "PURCHASE"
}