public Builder setAuthorityBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      authority_ = value;
      bitField0_ |= 0x00000400;
      onChanged();
      return this;
    }
<pre>
Output only. The user who authorized the creation of the
subscription.

Format: `users/{user}`

For Google Workspace users, the `{user}` value is the
[`user.id`](https://developers.google.com/admin-sdk/directory/reference/rest/v1/users#User.FIELDS.ids)
field from the Directory API.
</pre>

<code>
string authority = 10 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.resource_reference) = { ... }
</code>

@param value The bytes for authority to set.
@return This builder for chaining.
java-workspaceevents/proto-google-cloud-workspaceevents-v1/src/main/java/com/google/apps/events/subscriptions/v1/Subscription.java