Suricata logs base64 issues

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alert.json:

{"timestamp":"2015-09-16T08:07:25.916066-0500","flow_id":140478720631792,"event_type":"alert","vlan":95,"src_ip":"180.190.93.213","src_port":7748,"dest_ip":"192.168.1.1","dest_port":3306,"proto":"TCP","alert":{"action":"allowed","gid":1,"signature_id":2010937,"rev":2,"signature":"ET POLICY Suspicious inbound to mySQL port 3306","category":"Potentially Bad Traffic","severity":2},"payload":"","payload_printable":"","stream":0,"packet":"EF8IAgAAChYAJUU4jyIACOP\/\/ZAIAEUAADAakUAAbAYeILS+XdWcYichHkQM6nHWa5AAAAAAcAL\/\/6SlAAACBAWCAQEEAg=="}

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alert debug:

TIME:              09/16/2015-08:07:25.916066
PKT SRC:           gre tunnel
SRC IP:            180.190.93.213
DST IP:            192.168.1.1
PROTO:             6
SRC PORT:          7748
DST PORT:          3306
TCP SEQ:           1909877648
TCP ACK:           0
FLOW:              to_server: TRUE, to_client: FALSE
FLOW Start TS:     09/16/2015-08:07:25.916066
FLOW PKTS TODST:   1
FLOW PKTS TOSRC:   0
FLOW Total Bytes:  70
FLOW IPONLY SET:   TOSERVER: TRUE, TOCLIENT: FALSE
FLOW ACTION:       DROP: FALSE
FLOW NOINSPECTION: PACKET: FALSE, PAYLOAD: FALSE, APP_LAYER: FALSE
FLOW APP_LAYER:    DETECTED: FALSE, PROTO 0
PACKET LEN:        70
PACKET:
 0000  10 5F 08 02 00 00 0A 16  00 25 45 38 8F 22 00 08   ._...... .%E8."..
 0010  E3 FF FD 90 08 00 45 00  00 30 1A 91 40 00 6C 06   ......E. [email protected].
 0020  1E 20 B4 BE 5D D5 9C 62  27 21 1E 44 0C EA 71 D6   . ..]..b '!.D..q.
 0030  6B 90 00 00 00 00 70 02  FF FF A4 A5 00 00 02 04   k.....p. ........
 0040  05 82 01 01 04 02                                  ......
ALERT CNT:           1
ALERT MSG [00]:      ET POLICY Suspicious inbound to mySQL port 3306
ALERT GID [00]:      1
ALERT SID [00]:      2010937
ALERT REV [00]:      2
ALERT CLASS [00]:    Potentially Bad Traffic
ALERT PRIO [00]:     2
ALERT FOUND IN [00]: PACKET
ALERT IN TX [00]:    N/A

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Scapy output (after decode):

<Ether  dst=10:5f:08:02:00:00 src=0a:16:00:25:45:38 type=0x8f22 |<Raw  load="\x00\x08\xe3\xff\xfd\x90\x08\x00E\x00\x000\x1a\x91@\x00l\x06\x1e \xb4\xbe]\xd5\x9cb'!\x1eD\x0c\xeaq\xd6k\x90\x00\x00\x00\x00p\x02\xff\xff\xa4\xa5\x00\x00\x02\x04\x05\x82\x01\x01\x04\x02" |>>