{
"manageEntity": {
"action": "Save",
"entityId": "1542859165",
"entityType": "Track",
"nonce": "1793067845164093326",
"signature": "0xe6394a1e5b0de6030659c4d8fa58a7b7eb236b821b35c6b5a860d38e918fe87e56aa6f5843089a361279aedc4936a65786de532aa022fa207e8fa1a42aafda9c1b",
"signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
"userId": "827420993"
}
}