{
  "manageEntity": {
    "action": "Save",
    "entityId": "2138028025",
    "entityType": "Track",
    "nonce": "0xc76c5dbcd5397a64ca9d35e7723a4d820083314812c971517e71bad2202887bc",
    "signature": "0x524bf70e1ddadf212add9eac8bf4d69ef3987f27a396f528265859555052bbbb3a91713cb2cd10717ef46f9eb02db4da97916ff882b7681f4214d4725c2f2e861c",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}