{
  "manageEntity": {
    "action": "Save",
    "entityId": "2114751762",
    "entityType": "Track",
    "nonce": "0xd25033aa1d9a141b8706b97d9e8bdd97354748d61eb9f6f9dbf50bb95035d698",
    "signature": "0x6f3f2d04174c714b198b2b335e43ba417376e9a69ca4ee636e73907da78cd23c41c586694a71e413727f701672248a75dab0cc034a50361ed4e249a0ed8fed681c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}