{
  "manageEntity": {
    "action": "Save",
    "entityId": "1036816",
    "entityType": "Track",
    "nonce": "0xde55698a8e7e1e59f08262e63b2aad7e4eebe263887dc2e0f01142db8ac10334",
    "signature": "0x39c42dfc6d14556951dbd9775a06d8e7b052d5c3f03b0d49364f194ecd7d518a55f9772888e36121a9240616b0f0ac5dc70ae3eaeb8749305082973bc1cf14f51c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}