{
  "manageEntity": {
    "action": "Save",
    "entityId": "1180225211",
    "entityType": "Track",
    "nonce": "0xf45169a60b41472cd166f2e8f3fd2c6514ca039588116f149b1dd48a3c0b0e5c",
    "signature": "0x08634d8bc5a25b3b41f6679756fe8822ae4e3e18268bc689809d5a1c52aff9254f9e9f2cd1c159aa37de4351d897db09c8472040c3135bef078c96001296fe691b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}