# `CCXT.WS.Subscription.MethodSubscription`
[🔗](https://github.com/ZenHive/ccxt_client/blob/main/lib/ccxt/ws/subscription/method_subscription.ex#L1)

Hyperliquid-style subscribe frame.

    %{"method" => "subscribe", "subscription" => %{"type" => "allMids"}}

The channel list must contain exactly one entry; its value becomes the
`type` field of the nested subscription object. Config keys:
`:op_field` (default `"method"`), `:args_field` (default `"subscription"`).

Hyperliquid is in the `:custom` DEX bucket and is **not wired** in
`CCXT.WS.Config` today — this module is ported for completeness but not
exercised end-to-end until the DEX custom track unlocks upstream.

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*Consult [api-reference.md](api-reference.md) for complete listing*