curl --request POST \
  --url https://tonapi.io/v2/blockchain/message \
  --header 'Content-Type: application/json' \
  --data '
{
  "boc": "<string>",
  "batch": [
    "<string>"
  ],
  "meta": {}
}
'

{
  "error": "<string>",
  "error_code": 123
}