{
  "manageEntity": {
    "action": "Save",
    "entityId": "95151055",
    "entityType": "Track",
    "nonce": "0x3dff85040ea95a5db6eb15cf45ea061ef7e2268d9b77e070e6dce627de528dc1",
    "signature": "0x463b203dd4e136fcd3c57a375116395dcd2c64059ab56501966bd15135a9b6cf3862b45d39763987a6d8e6e4434cf451c9e2d45d69ddcc2a63f9920728ac46ef1b",
    "signer": "0xC657bd3E50e9082279d5D1a5f1B85d0c985b3523",
    "userId": "592353919"
  }
}