Add wallet

curl --request POST \
  --url https://api.gateway.tech/accounts/me/wallets \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "address": "<string>"
}'

{
  "created_at": "<string>",
  "did": "<string>",
  "profile_picture": "<string>",
  "storage_size": 123,
  "updated_at": "<string>",
  "username": "<string>",
  "username_updated_at": "<string>",
  "wallet_addresses": [
    {
      "account_id": 123,
      "address": "<string>",
      "chain": "<string>",
      "created_at": "<string>",
      "id": 123,
      "updated_at": "<string>"
    }
  ]
}