{"wxids":"filehelper","msg_ids":[6447501066782281615,6742097047002866624,7819527608700612120]}
curl --location --request POST 'msg_merge' \
--header 'Content-Type: application/json' \
--data-raw '{"wxids":"filehelper","msg_ids":[6447501066782281615,6742097047002866624,7819527608700612120]}'{}