Updates a member's token balance

curl --request PATCH \
  --url https://api.drip.re/api/v4/realms/{id}/members/{memberId}/tokenBalance \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "realmPointId": "<string>",
  "tokens": 123
}'

{
  "newBalance": 123
}