curl --request POST \
  --url https://api.yieldo.xyz/v1/withdraw/build \
  --header 'Content-Type: application/json' \
  --data '
{
  "vault_id": "<string>",
  "shares": "<string>",
  "min_amount_out": "<string>",
  "user_address": "<string>",
  "nonce": "<string>",
  "deadline": "<string>",
  "signature": "<string>",
  "mode": "<string>"
}
'

{
  "transaction_request": {
    "to": "<string>",
    "data": "<string>",
    "value": "<string>",
    "chain_id": 123,
    "gas_limit": "<string>"
  },
  "approval": {
    "token_address": "<string>",
    "spender_address": "<string>",
    "amount": "<string>"
  },
  "mode": "<string>",
  "tracking_id": "<string>"
}