Type A request

curl --request POST \
  --url https://gateway.taiyi-devnet-0.preconfs.org/commitments/v0/submit_tx_type_a \
  --header 'Content-Type: application/json' \
  --header 'x-luban-signature: <x-luban-signature>' \
  --data '{
  "tip_transaction": "<string>",
  "preconf_transaction": [
    "<string>"
  ],
  "target_slot": 123
}'

{
  "request_id": "0729a580-2240-11e6-9eb5-0002a5d5c51b",
  "commitment": "0x8a726dc1d89dc0b10a27130c562cce2d346f2bbac1af683d9b55632825e4abc0480bcf25276452a3c076f2a5d756c6deedd552cfc343dd34a5953835f4d7c8a71c",
  "sequence_num": 123
}