{
  "manageEntity": {
    "action": "Save",
    "entityId": "1533647104",
    "entityType": "Track",
    "nonce": "0x5e06662aa9793d15d3574d5cab2fd587c0cac3b6ca232482efc5871bc7805311",
    "signature": "0xf53a35ea73be9153277f273a5177811aa31c1db6eef22bb387d26d47aea074e410c110ca00f58c9b031231a254355a9ff3cc7193a7f3c676828e4f675e1536d31c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}