curl --request PATCH \
  --url https://api.example.com/v0/user/me/bank/accounts/{external_id} \
  --header 'Content-Type: application/json' \
  --data '
{
  "nickname": "<string>",
  "is_primary": true
}
'

{
  "_links": {
    "kyc": {
      "description": "Submit KYC information",
      "href": "/v0/user/me/kyc",
      "method": "PUT"
    },
    "self": {
      "href": "/v0/user/me",
      "method": "GET"
    },
    "wallets": {
      "href": "/v0/wallets",
      "method": "GET"
    }
  }
}