{
  "manageEntity": {
    "action": "Save",
    "entityId": "5036",
    "entityType": "Track",
    "nonce": "0x6b1e04b8b6f9892a4a5ff1f927ad0df8968486966e8d13117bf2843c98b8b6b9",
    "signature": "0x154475dfec33bcc4041660f53f57fcf20df8261cbed1a8fdf12beac64ab6ec4e0972e672855987d84f4a00cbe0a8c56ebfca86be9d845c2a25ab4ce66b294e961b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}