curl --request POST \
  --url https://partners-api.sandbox.securitize.io/stocks/v1/wallets/{address}/prepare-verification \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "investorId": "6b31c0e9a4f2d17e85c3b904",
  "blockchainType": "solana"
}
'

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({investorId: '6b31c0e9a4f2d17e85c3b904', blockchainType: 'solana'})
};

fetch('https://partners-api.sandbox.securitize.io/stocks/v1/wallets/{address}/prepare-verification', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://partners-api.sandbox.securitize.io/stocks/v1/wallets/{address}/prepare-verification"

payload = {
    "investorId": "6b31c0e9a4f2d17e85c3b904",
    "blockchainType": "solana"
}
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "agreementMessage": "By signing this message I confirm that I control the wallet 7EcDhSYGxXyscszYEp35KHN8vvw3svAuLKTzXwCFLtV and accept the Securitize wallet terms."
}

{
  "statusCode": 400,
  "message": "WALLET_ALREADY_IN_USE",
  "error": "Bad Request"
}

{
  "message": "No API key found in request"
}