post https://svc.blockdaemon.com/boss/v1/near//deactivation-intents
Create a transaction for deactivating staked NEAR tokens.
The Post Deactivation Intent endpoint return an unsigned transaction, which once signed and broadcasted starts the deactivation process. The process will complete in 4 NEAR epochs (48 hours).
Once the deactivation countdown is underway, you can still change the deactivated account by generating and broadcasting a new deactivation transaction, but please note that this will reset the countdown.