{
  "manageEntity": {
    "action": "Save",
    "entityId": "864379786",
    "entityType": "Track",
    "nonce": "0xbebd82a04583827a6bdb24f7dbb96ec0742fda27f4a772a5af62fb1e0bd2548f",
    "signature": "0xfbffc51560f85f4517cd1dd89b1eb0b47d5fb898c10475cfc164f154b03b2e801635d4dbcb638002a5e45f48967fa9b89b00c809b05cd1901b3fd379973bbe241c",
    "signer": "0x0CD8c65F2d0399B442E2f8907f48BC34f1Ee7615",
    "userId": "901822438"
  }
}