The ID of the account to attach the policy to.
The chain ID the policy applies to (e.g. '11155111' for Sepolia), or
'*' to apply it on every chain.
The ID of the organisation to attach the account policy to.
The parameters for the policy. See PolicyParams for which member
corresponds to which type.
The type of policy to create — see PolicyType. Note
nominated_approvers policies cannot be created (not yet implemented).
Request payload for creating a new policy on an account.