{
  "manageEntity": {
    "action": "Save",
    "entityId": "1830086911",
    "entityType": "Track",
    "nonce": "0xd2bef1c067c7ac617406c64fb1c9669d79efc04b3c6a8122dbdf897b900c9da5",
    "signature": "0xc1216d1b574552ff010ac2cc7e71e39ea380085f09e6c8c9bad42a83d3010d9a0154dfea02cc0d713570bb84bcb61785f88e8b4f875fe432d4d0e782bbc07f971b",
    "signer": "0x65b2681094e762CAD2349e6C1e2FbC8d54b9c046",
    "userId": "11153747"
  }
}