Exhibit 4.23

Power of Attorney

I, Bin
LI, a Chinese citizen with Chinese Identification Card No.: , and a holder of 55.7% of the entire registered capital in Beijing Yixin Information Technology Co., Ltd. (Beijing Yixin) as of the date when the Power of Attorney is executed,
hereby irrevocably authorize Shanghai Techuang Advertising Co., Ltd. (WFOE) to exercise the following rights relating to all equity interests held by me now and in the future in Beijing Yixin (My Shareholding) during the term
of this Power of Attorney:

WFOE (or any person designated by WFOE) is hereby authorized to act on behalf of myself as my exclusive agent
and attorney with respect to all matters concerning My Shareholding, including without limitation to: 1) attending shareholders meetings of Beijing Yixin; 2) exercising all the shareholders rights and shareholders voting rights I
am entitled to under the laws of China and Beijing Yixin of Association, including but not limited to the sale or transfer or pledge or disposition of My Shareholding in part or in whole; and 3) designate and appoint on behalf of myself the legal
representative, the directors, supervisors, the chief executive officer and other senior management members of Beijing Yixin. Without written consent by WFOE, I have no right to increase, decrease, transfer, pledge, or by any other manner to dispose
or change My Shareholding.

Without limiting the generality of the powers granted hereunder, WFOE shall have the power and authority to,
on behalf of myself, execute all the documents I shall sign as stipulated in the Exclusive Option Agreement entered into by and among me, WFOE and Beijing Yixin on April 20, 2015 and the Equity Pledge Agreement entered into by and among me, WFOE and
Beijing Yixin on April 20, 2015 (including any modification, amendment and restatement thereto, collectively the Transaction Documents), and perform the terms of the Transaction Documents.

All the actions associated with My Shareholding conducted by WFOE (or the person designated by WFOE) shall be deemed as my own actions, and
all the documents related to My Shareholding executed by WFOE shall be deemed to be executed by me. I hereby acknowledge and ratify those actions and/or documents by WFOE.

WFOE is entitled to re-authorize or assign its rights related to the aforesaid matters to any other person or entity at its own discretion and
without giving prior notice to me or obtaining my consent. If required by PRC laws, WFOE shall designate a PRC citizen to exercise the aforementioned rights. If required by PRC laws or WFOE, I shall grant to the person designated by the WFOE an
authorization in form and content same as this Power of Attorney. Once the WFOE withdraw its authorization to any person designated by it to exercise the aforementioned rights, I will immediately withdraw the authorization herein after receiving
WFOEs written notice; except for the above, I shall not withdraw any authorization granted to WFOE or any person designated by WFOE.

During the period that I am a shareholder of Beijing Yixin (whether My Shareholding changed or not), this Power of Attorney shall be
irrevocable and continuously effective and valid from the date of execution of this Power of Attorney.



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During the term of this Power of Attorney, I hereby waive all the rights associated with My
Shareholding, which have been authorized to WFOE through this Power of Attorney, and shall not exercise such rights by myself.

This Power
of Attorney is written in Chinese and English. In case there is any conflict between the Chinese version and the English version, the Chinese version shall prevail.



Bin LIBy:

/s/ Bin LiDate:

April 20, 2015




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|                                               |  | 
|---------------------------------------------- |  | 
|Accepted by                                   
|                                              
|Shanghai Techuang Advertising Co., Ltd. (seal)

|       |  |                     
|------ |  | --------------------
|       | 
|By:    |  | /s/ Bin Li          
|Name:  |  | Bin Li              
|Title: |  | Legal Representative



|                                                         |  | 
|-------------------------------------------------------- |  | 
|Acknowledged by:                                        
|                                                        
|Beijing Yixin Information Technology Co., Ltd. (seal)   
|(seal of Beijing Yixin Information Technology Co., Ltd.)

|       |  |                     
|------ |  | --------------------
|       | 
|By:    |  | /s/Bin Li           
|Name:  |  | Bin LI              
|Title: |  | Legal Representative



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Schedule A

The following schedule sets forth all other similar agreements the registrant entered into with the relevant Chinese structured entity of the registrant.
Other than the information set forth below, there is no material difference between such other agreements and this exhibit.



|                                              |  |                                                                                                                                          |  |               
|--------------------------------------------- |  | ---------------------------------------------------------------------------------------------------------------------------------------- |  | --------------
|VIE                                           |  | Executing Parties                                                                                                                        |  | Execution Date
|Beijing Yixin Information Technology Co., Ltd |  | Shenzhen Tencent Industry Investment Fund
Co., Ltd. Shanghai Techuang Advertising Co., Ltd. Beijing
Yixin InformationTechnology Co., Ltd |  | April 20, 2015
|Beijing Yixin Information Technology Co., Ltd |  | Beijing Jiasheng InvestmentManagement Co., Ltd.
Shanghai Techuang AdvertisingCo., Ltd. Beijing Yixin
Information Technology Co., Ltd     |  | April 20, 2015



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