Api set derisk to maintenance margin ratio request

ApiSetDeriskToMaintenanceMarginRatioRequest

The request to set the derisk margin to maintenance margin ratio of a sub account

Name Lite	Type	Required Default	Description
sub_account_id sa	string	True	The sub account ID to set the leverage for
ratio r	string	True	The derisk margin to maintenance margin ratio of this sub account
signature s	Signature	True	The signature of this operation

Signature

Name Lite	Type	Required Default	Description
signer s	string	True	The address (public key) of the wallet signing the payload
r r	string	True	Signature R
s s1	string	True	Signature S
v v	integer	True	Signature V
expiration e	string	True	Timestamp after which this signature expires, expressed in unix nanoseconds. Must be capped at 30 days
nonce n	integer	True	Users can randomly generate this value, used as a signature deconflicting key. ie. You can send the same exact instruction twice with different nonces. When the same nonce is used, the same payload will generate the same signature. Our system will consider the payload a duplicate, and ignore it. Range: 0 to 4,294,967,295 (uint32)
chain_id ci	string	True	Chain ID used in EIP-712 domain. Zero value fallbacks to GRVT Chain ID.