{
  "manageEntity": {
    "action": "Save",
    "entityId": "1984821525",
    "entityType": "Track",
    "nonce": "0x232e7b5db5f5feb8dbb4bd8191842c10e6efc94ab027d23724fd049cb1ab09a1",
    "signature": "0x234ae5c3714a21a74dd8d2bba14af719055d98b5ced60c42893086827d7a2d6434f4a8263d38a1627f57d6eba475f9c0e20135c013ed30ce0c4306f2c348eb0b1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}