{
  "manageEntity": {
    "action": "Save",
    "entityId": "1164505126",
    "entityType": "Track",
    "nonce": "0x41c3a9d84fa650797c6a7a8f5a09ace316949b0da8ec93213d9cf81b819deb88",
    "signature": "0xbd4e8d64a445f03edede6e7a2cf945c1bc55e376b6f73e5b09e8c920b9ae7cc66c71e29628a1a2592063bc3b7a5258fd5d165bb77a2d225c9e0bd154f28c2a061c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}