GraphQL Deploy file and additional data

Hello I'm trying to deploy a file + few more fields as a payload using GraphQL + NestJS

Currently InputType looks like this

@InputType()
export class CreateONSInput {
  @Field()
  signature: string;

  @Field()
  message: string;

  @Field()
  ons: string;

  @Field((type) => [AccountInfoInput])
  accountInfo: AccountInfoInput[];

  @Field((type) => GraphQLUpload)
  file: Promise<FileUpload>;
}

And I'm Using Altair GraphQL Client as a playground from which I'm sending this:

Issue is that it throws Field \"file\" of required type \"Upload!\" was not provided.", any idea how to do it?