export interface ZoomAnalyticsUrlValidationResponse {
    plainToken: string;
    encryptedToken: string;
}
export declare class ZoomAnalyticsWebhookSignatureUtil {
    static buildUrlValidationResponse(plainToken: string, secret: string): ZoomAnalyticsUrlValidationResponse;
    static verifySignature(body: unknown, signature: string | undefined, timestamp: string | undefined, secret: string): boolean;
    static isTimestampFresh(timestamp: string | undefined): boolean;
}