curl --request GET \
  --url https://api.ledger.so/v1/users/{userId}/contracts \
  --header 'Api-Key: <api-key>'

{
  "userId": "<string>",
  "contracts": [
    {
      "chainId": 123,
      "depositAddress": "<string>",
      "tokens": [
        {
          "address": "<string>",
          "symbol": "<string>",
          "balance": "<string>"
        }
      ]
    }
  ]
}