{
  "manageEntity": {
    "action": "Save",
    "entityId": "1295642503",
    "entityType": "Track",
    "nonce": "0xce4404f36fc4d5a6c14e0e6ea43ea62b1b450a9b13fa94bd45db648603b29ad2",
    "signature": "0x06fcbe6666119b323ee944f80e0add0c056bc69b78fe1161e9e1e6241a3dd13517386172ed4d7af0c9b2cef2f009bffffaf29afd9553f854776c001319b687251c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}