{
  "manageEntity": {
    "action": "Save",
    "entityId": "24846288",
    "entityType": "Track",
    "nonce": "0xf2dcde2071c8c865440559d7fe0077adf6baa20bb93d9fe10db610abc192135f",
    "signature": "0x41c75e91c6e11485d7c257ec04de9eacbce7cf9b64e056ed1fe49aba060a79ee315c256204f2d0cc02a1353d606e197569e33ad07d0956c7b7d2280fb94310731b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}