By running the command with -vvvvv I am getting the following error:
* upload completely sent off: 8 out of 8 bytes
* Mark bundle as not supporting multiuse
< HTTP/1.1 400 Bad Request
< Date: Sat, 18 Apr 2020 15:31:51 GMT
< Content-Type: application/json; charset=UTF-8
< X-Content-Type-Options: nosniff
< Content-Length: 64
< Vary: Authorization
< Connection: Keep-Alive
< X-Frame-Options: SAMEORIGIN
< Server: Splunkd
<
{"text":"Invalid data format","code":6,"invalid-event-number":0}* Connection #0 to host input-prd-p-5x72v3pzvdnj.cloud.splunk.com left intact
curl: (3) unmatched close brace/bracket in URL position 12:
hello world}'
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