curl --request PATCH \
  --url https://gateway-api-staging.gobob.xyz/v1/register-tx \
  --header 'Content-Type: application/json' \
  --data '
{
  "onramp": {
    "order_id": "f81d4fae-7dec-11d0-a765-00a0c91e6bf6",
    "bitcoin_tx_hex": "<string>",
    "bitcoin_txid": "<string>"
  }
}
'

{
  "onramp": {
    "txid": "<string>"
  }
}