{
  "manageEntity": {
    "action": "Save",
    "entityId": "92397",
    "entityType": "Track",
    "nonce": "0x1f1523c889812bb03a71b7fdeb721294d5d715e91335c80b90dac12211143286",
    "signature": "0x07f8393e1b85e2640bb1fb7ee2333a59884d13afc03ab43a679161158a59c8f766f6fa9c895175819221c41e3cff77108fd32567e603517d5a2c38f4fbf8b43f1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}