public void setSignatureExpiresAt(java.util.Date signatureExpiresAt) {
        this.signatureExpiresAt = signatureExpiresAt;
    }
<p>
Thr expiration timestamp for the signature generated by the signing job.
</p>

@param signatureExpiresAt
       Thr expiration timestamp for the signature generated by the signing job.
aws-java-sdk-signer/src/main/java/com/amazonaws/services/signer/model/DescribeSigningJobResult.java