Request: Refer to Create Transaction Request for common parameters.
- requestType is shufflingCreate
- chain the chain related to the operation
- holding is the holding id (optional if holdingType is 0)
- holdingType is the holding type (See Get Constants for type definitions) (optional)
- amount is the amount of the holding to shuffle
- participantCount is the number of participants
- registrationPeriod is the number of blocks the participants have to register until the shuffle is cancelled