{
"manageEntity": {
"action": "Save",
"entityId": "1978342971",
"entityType": "Track",
"nonce": "1793018675656518683",
"signature": "0x6817afbfa0b3f648565bde42cb8f5242f33c49834586bc2cbcbbcfc3a04749d24374aaaea463e2e89cdda5db1d0bd6157c816d017323b31d063fd6c8b0f28f2d1b",
"signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
"userId": "827420993"
}
}