{
"manageEntity": {
"action": "Save",
"entityId": "1468132782",
"entityType": "Track",
"nonce": "0xb91d6a0f521d8ec1dc93e53ea4882cce8fb8345e6409c8e235548c9a3dde94b4",
"signature": "0x87fb42be1b9cafe293607bfea7f5fc6e9b1cc9e74167c50bcbfad8f025bd37bf41fe2e44ebe3dfc697fcccd0288d79f9e5949e39a4afe8ac445d2039bd5ebe091c",
"signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
"userId": "714646433"
}
}