Update Currency Metadata

curl --request PATCH \
  --url https://api.drip.re/api/v1/realms/{realmId}/currencies/{currencyId}/metadata \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "metadata": {}
}'

{
  "error": "<string>",
  "message": "<string>"
}