{
  "manageEntity": {
    "action": "Save",
    "entityId": "1810527396",
    "entityType": "Track",
    "nonce": "0xd26d641cadb07980616ab482c44686743dd32a0f5a4cbf57e27513e24fd0a5ab",
    "signature": "0x7a3e5a562d1f7421631704bd24a3d5dced1ce2eeb6601e80b98846db1e6d8c70799a33408c4b41b9a213a28ccf452db8257d30ec6bdf6221928a7fa9f501336b1c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}