Exhibit 24

                               POWER OF ATTORNEY


     The undersigned hereby constitutes and appoints each of Wong Sze Tchung
Jason and Ng Ngar Bun Raymond, signing singly, and with full power of
substitution, the undersigned's true and lawful attorney-in-fact to:

     (1)  execute for and on behalf of the undersigned, and in the undersigned's
capacity as an officer and/or director of each of the respective entities listed
on Annex A hereto (each, a "Company"), from time to time the following U.S.
Securities and Exchange Commission ("SEC") forms: (i) Form ID, including any
attached documents, to effect the assignment of codes to the undersigned and
each respective Company to be used in the transmission of information to the SEC
using the EDGAR System; (ii) Form 3, Initial Statement of Beneficial Ownership
of Securities, including any attached documents; (iii) Form 4, Statement of
Changes in Beneficial Ownership of Securities, including any attached documents;
(iv) Form 5, Annual Statement of Beneficial Ownership of Securities in
accordance with Section 16(a) of the Securities Exchange Act of 1934, as
amended, and the rules thereunder, including any attached documents; (v)
Schedule 13D or 13G; and (vi) amendments of each thereof, in accordance with the
Securities Exchange Act of 1934, as amended, and the rules thereunder, including
any attached documents;

     (2)  do and perform any and all acts for and on behalf of the undersigned
which may be necessary or desirable to complete and execute any such Form 3, 4
or 5, Schedule 13G, Schedule 13D or any amendment(s) thereto, and timely file
such form(s) with the SEC and any securities exchange, national association or
similar authority; and

     (3)  take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-fact may approve in such
attorney-in-fact's discretion.

     The undersigned hereby grants to each such attorney-in-fact, acting singly,
full power and authority to do and perform any and every act and thing
whatsoever requisite, necessary or proper to be done in the exercise of any of
the rights and powers herein granted, as fully to all intents and purposes as
the undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this Power of Attorney and the
rights and powers herein granted.  The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is the respective Company assuming, any of
the undersigned's responsibilities to comply with Section 16 or Regulation 13D-G
of the Securities Exchange Act of 1934, as amended.  The undersigned hereby
agrees to indemnify the attorney-in-fact and the respective Company from and
against any demand, damage, loss, cost or expense arising from any false or
misleading information provided by the undersigned to the attorney-in fact.

     This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file such forms with respect to the
undersigned's holdings of and transactions in securities issued to the
respective Company, unless earlier revoked by the undersigned in a signed
writing delivered to the foregoing attorneys-in-fact.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]



     IN WITNESS WHEREOF, the undersigned have caused this Power of Attorney to
be executed as of May 2, 2019.


                                        /s/ Chau Hoi Shuen Solina Holly
                                        -----------------------------------
                                        Chau Hoi Shuen Solina Holly


                                        Puccini World Limited

                                        By: /s/ Chau Hoi Shuen Solina Holly
                                            -------------------------------
                                        Name: Chau Hoi Shuen Solina Holly
                                        Title: Director


                                        Oscar Time Limited

                                        By: /s/ Chau Hoi Shuen Solina Holly
                                            -------------------------------
                                        Name: Chau Hoi Shuen Solina Holly
                                        Title: Director


                                        Cranwood Company Limited

                                        By: /s/ Chau Hoi Shuen Solina Holly
                                            -------------------------------
                                        Name: Chau Hoi Shuen Solina Holly
                                        Title: Director


                                        Composers International Limited

                                        By: /s/ Chau Hoi Shuen Solina Holly
                                            -------------------------------
                                        Name: Chau Hoi Shuen Solina Holly
                                        Title: Director




                [Signature page of Power of Attorney (2019 May)]


                                    ANNEX A

Puccini World Limited
Oscar Time Limited
Cranwood Company Limited
Composers International Limited