getting array from MQTT via scripting

[livezen]

Hi,
i'm having trouble reading an JSON array from MQTT using Tasmota scripting.
Please advice
Thanks

mqtt data:
LOCAL = {"date":"2023-11-11","log":[10.33,10.77,11.21,12.12,10.31,10.99,10.08]} // is flagged as data retain in mqtt server

For reference, I can get date parameter from LOCAL - so the mqtt connection as such is working.

code:

D
m:val=0 7

B
; this section is executed durig boot or on script restart
print booting
if mqtts>0
then
=#subs
endif

#subs
+>Subscribe val, sensor01/LOCAL, log

S
; this section is executed every second
if mqtts>0
then
=#subs
endif

print %val[1]% %val[2]% %val[3]% %val[4]% %val[5]% %val[6]% %val[7]%

R
; this section is executed on restart
print restarting