Capture tcp payload on HAProxy

HAProxy version:2.2.1
I wanna capture tcp packet and make acl by captured tcp packet but now I’m trying to capture payload it doesn’t work.
My configuration

frontend hts_frontend
    bind *:8400
    mode tcp
    maxconn 3000
    option tcplog
    log global
    timeout client  1m
    tcp-request inspect-delay 1s
    tcp-request content capture payload(0,192) len 1

I want to capture the 118th character same as screenshot and make acl if the character is 1 going to A backend server other character is going to B backend server

Please advice me how to do that…

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