{
  "manageEntity": {
    "action": "Save",
    "entityId": "1315375136",
    "entityType": "Track",
    "nonce": "1792393715495196658",
    "signature": "0x4b3bb02cb1c93abd9e030330ac8f6f6753744ef5910a6a889d8af37e9fed774d30633fef2b5a4ba9d3d177190a71c30e53c2ff7577f2c49152dd4798122f6c981c",
    "signer": "0x9B241b1a6A99d662AE67D328e091Fc94faF23fdc",
    "userId": "881446128"
  }
}