{
  "manageEntity": {
    "action": "Delete",
    "entityId": "689393048",
    "entityType": "Track",
    "nonce": "0xd9ac2a0a5ba51b603cb7c1bed6d3b62babb95cf75b8fd31c7a0c7ae47a04e936",
    "signature": "0xa2d5878b9dab0591ca2a6bb9908bb90af47c82ebcc1052d057f1da1b5f48ca5b2f9973eddf778be80f95f054283d74587c378156bfbb05b1c0e411c8129e4f1f1c",
    "signer": "0xc4A500E17D812B285447720CCcb7F8eB148c91bd",
    "userId": "256479919"
  }
}