struct RentPayload {
    OrderFulfillment fulfillment;
    OrderMetadata metadata;
    uint256 expiration;
    address intendedFulfiller;
}
struct OrderFulfillment {
    // Rental wallet address.
    address recipient;
}
struct OrderMetadata {
    // Type of order being created.
    OrderType orderType;
    // Duration of the rental in seconds.
    uint256 rentDuration;
    // Hooks that will act as middleware for the items in the order.
    Hook[] hooks;
    // Any extra data to be emitted upon order fulfillment.
    bytes emittedExtraData;
}
struct RentPayload {
    bytes32 orderHash;
    OrderFulfillment fulfillment;
    OrderMetadata metadata;
    uint256 expiration;
    address intendedFulfiller;
}
