{
  "manageEntity": {
    "action": "Save",
    "entityId": "2061362570",
    "entityType": "Track",
    "nonce": "0x04e4bf0cf0fb68bf6b588153b129793df0a5ac3d90689b70effb840855f1930f",
    "signature": "0xbe19651fca9ae272a720400f088822b1c58f2d897aa437881a2cf545c01c9be71faa604b6e1aa38eb424c63c5a4d87de4ec5ca305774ab0f94f9a6a943585b731b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}