{
  "manageEntity": {
    "action": "Save",
    "entityId": "132482649",
    "entityType": "Track",
    "nonce": "0x7678ba60079b2bfb3e1d95dc32e6acf22c1dccd4d5bc8a6c944915e62dd71499",
    "signature": "0x5ea279ddb60cf7886d1c10c034b8eb540cfd8f78b24f3f91d84313f82ad5ec2f0241f2de9431626527bfe807eb05f899c9f7138686edb4e579d9fefa8e25e22e1b",
    "signer": "0x5A6DCd6E22135e4225594900c17114A7dAD01964",
    "userId": "580576096"
  }
}