{
  "manageEntity": {
    "action": "Save",
    "entityId": "32084690",
    "entityType": "Track",
    "nonce": "0x4cfc801e506efeb33131390d14e79e4497d11d3bb62c8212cd801c0ca7258849",
    "signature": "0x5df564fc58c53535fc02d1656b98de6087a2d7a3e3eecfe17f5abc8d4407057b6bf3a5d13a6fa48fb1a4c777661867a9b48d1fc2e2cf36737bc43a59eb1512241c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}