{
  "manageEntity": {
    "action": "Save",
    "entityId": "1810359170",
    "entityType": "Track",
    "nonce": "0xc7bec15bf1184ceac71c0eaaea54e5d19298b24285599488332e25ddd262501c",
    "signature": "0x32dc6cc82cfc79cdb92ac5dededeacf98c924ec5fdb49ae3307e6c40ae1e3c4307cc44898f2885d0a71bd3e2a96c5d9e28f7c3d2a949c96d4a9fe832449730111b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}