{
  "manageEntity": {
    "action": "Save",
    "entityId": "1019776026",
    "entityType": "Track",
    "nonce": "0xa2c1bc35ca2efc2044d3dde8a80ae7ca09de20e118669b37a7836a537ae9152d",
    "signature": "0x3f36a0212a24c648db495568ec189bebfc47932738ee5b34a408d6edec2414353d48c1f0cbd805eebcf92583e417f2ef5e51abe3764f52e1174b24f6850900ac1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}