Step 11) oVASP decrypts KYC/IVMS data with oUser’s private key

endpoint
`POST` {{baseUrl}}/api/v1/server/decrypt_ivms
body
"private_key": "0xbc454d37a96647a26aafdf15fc6a0eb81b7874c510d1b8b201ad2b5d785978cf"
"kyc_data": "BLJ1mx9Ayym8kBwo76nxpNs1+j1OUQaOdYsxkrExH2JnmwdaAjDXKncVh9wURtbjBA+1ANaJgwBXwbKFEOO/TZPuFv39BfBOFcEhqv7TBC6mJIJyRcV3QWYIJ82PAzkxnLNWrH0vMYg/VVJ50/IHUjai1dBaWdASuQDfhzT/E0oRTl3jWpG2JJVukNtMR/uEdQLvZHpjtPyK"
private_key must begin with 0x
response (200 OK)
"{\"beneficiary\":\"test kyc data 0x279623\"}"