一个APP的签名求帮我分析下，我看不懂

楠枫

签名方式：V1
Owner: CN=Zhongkang Yi, OU=Mobile Development, O=Zhaoqing Zhiqi Information Technology Co. Ltd., L=Room 4014 4 F Mingyuan Canteen Zhaoqing Gongshang Vocational and Technical College Seven-star Crags Scenic Area, ST=Guangdong Guangdong 526020, C=CN
Issuer: CN=Zhongkang Yi, OU=Mobile Development, O=Zhaoqing Zhiqi Information Technology Co. Ltd., L=Room 4014 4 F Mingyuan Canteen Zhaoqing Gongshang Vocational and Technical College Seven-star Crags Scenic Area, ST=Guangdong Guangdong 526020, C=CN
Serial number: 42e3696f
Valid from: Sun May 14 21:32:37 CST 2017 until: Thu May 08 21:32:37 CST 2042
Certificate fingerprints:
         MD5:  A1:AC:FF:6C:26:39:BC:54:E1:CA:6F:66:52:44:95:EA
         SHA1: 1F:23:B3:28:BC:A1:1B:F2:00:8C:6B:42:49:00:F4:AB:61:7B:2B:9E
         SHA256: 91:81:AC:9D:CF:F4:6A:4B:09:31:A0:B4:8A:4C:5D:C9:32:C7:53:43:1A:A0:50:EF:36:95:66:49:9E:78:18:24
Signature algorithm name: SHA256withRSA
Subject Public Key Algorithm: 2048-bit RSA key
Version: 3

Extensions:

#1: ObjectId: 2.5.29.14 Criticality=false
SubjectKeyIdentifier [
KeyIdentifier [
0000: AE BF 95 EB BF 4B 45 DC   B2 34 8D BA 2C 48 01 BC  .....KE..4..,H..
0010: 87 7B 0A 0D                                        ....
]
]