Monocle S-4/A Registration of securities issued in business combination transactions (amended)

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the use in this Amendment No. 1 to the Registration Statement on Form S-4, of our report dated February 5, 2019, relating to the balance sheet of Monocle Acquisition Corporation as of December 31, 2018, and the related statements of operations, changes in stockholders’ equity and cash flows for the period from August 20, 2018 (inception) through December 31, 2018, and to the reference to our Firm under the caption “Experts” in the Registration Statement.

/s/ WithumSmith+Brown, PC

New York, New York

February 13, 2020