{
  "manageEntity": {
    "action": "Save",
    "entityId": "1360226566",
    "entityType": "Track",
    "nonce": "0x8b9a4da97066a7d2df13c0ef20483f684effe8284b69427276f3f305d65e0de7",
    "signature": "0x428a110f7ab7c041e307ee0dc3bb6e019df2970a7a79824c38f4b322a27f31402945efc0e142a076dd6459a787f10ef4b7e84915bfd1d52b08bedfb2b75af58c1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}