{
  "manageEntity": {
    "action": "Save",
    "entityId": "796671042",
    "entityType": "Track",
    "nonce": "0xbcb7f07d495f42c1ec8797300449e6914be313112c7f5aa60a7fd24df2426e0c",
    "signature": "0x9dc34b66832381e3318257590b53f176614b0e276d64e11c07360233180df6653e74fc6f8dfd71e8dfe6dffb7c5d668ac191ecd68e7bc713fef3d9b0fbda22741c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}