{
  "manageEntity": {
    "action": "Save",
    "entityId": "1329796785",
    "entityType": "Track",
    "nonce": "0x410b75b1364e99d3761131ee56c06d0537d6f112210e0d4087b0a1dfd873fcdb",
    "signature": "0x24721f60c42a00f12bf35c9ebf2433274ada886322e048f69c788c053a01db670a5cf9bc2bc557035e37eaa79f9f97e92a1cbf663d04f4ade2ac0e4aef168dc51c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}