curl --request POST \
  --url https://api.prime.coinbase.com/v1/portfolios/{portfolio_id}/wallets/{wallet_id}/addresses \
  --header 'Content-Type: application/json' \
  --data '{
  "network_id": "ethereum-mainnet"
}'

{
  "address": "<string>",
  "account_identifier": "<string>",
  "network": {
    "id": "<string>",
    "type": "<string>"
  }
}