Fix an bin bash script part

It must be an easier way to replace an raw of an json data with sed... My way dont work wright: varcfg_b='"' varcfg_b1=" " date_1=$(eval date +%d.%m.%y) next_full_wipe=$(date +"%d.%m.%y" --date='next Thursday') sed -i -e 13c"$varcfg_b1$varcfg_bLast Wipe: $date_1 (Map-Wipe) | Next Wipe: $next_full_wipe (Full-WIPE)$v$ echo "${tput_green}Ingame Wipe Information was changed ${tput_reset}" output: "Response": [ "Last Wipe: 26.12.20 (Map-Wipe) | Next Wipe: 31.12.20 (Full-WIPE)" Wipe: 26.12.20 (Map-Wipe) | Next Wipe: 31.12.20 (Full-WIPE)" { if i use the script twice, the same sentence will be build in in the json data. but only: "Last Wipe: 26.12.20 (Map-Wipe) | Next Wipe: 31.12.20 (Full-WIPE)" is needed on an special part of the json data.