{
  "manageEntity": {
    "action": "Save",
    "entityId": "1112181105",
    "entityType": "Track",
    "nonce": "0x0e81ce31bc42fbcc205aab3b8fac58d19ef3db852e19148b4611aa961bb7db03",
    "signature": "0xc02e7d08763245e7cae4ba0a4524b7c60bb32472fd0fd5dbd6139a67d78ea4377372c180d95b4e7d5a6ce25c92216d596e4f271a353975c9a862d6b6b46ffc0d1c",
    "signer": "0x06Ad5789cE045C5B0AeB97849051a7385CA95B4a",
    "userId": "270209897"
  }
}