Spec: Chain

The chain_changed event is emitted whenever the user’s chain network changes. It includes the chain ID the user switched to.

Here’s the payload of a typical call with most common fields removed:

{
    "action": "chain_changed", 
    "payload": {
        "chain_id": 1,
        "address": "0x8e6ca77a7e044ba836a97beb796c124ca3a6a154"
    }
}