An array where each item is a new value to add for the specified published attribute.

For entity-type published attributes (object_type: "entity"): Each item must contain a unique entity identifier and a value. The entity identifier can be either an external_entity_id or an entity_token.

• Option 1: external_entity_id is required
• Option 2: entity_token is required

For transaction-type published attributes (object_type: "transaction"): Each item must contain a transaction_token and a value.

• transaction_token is required