{
  "manageEntity": {
    "action": "Save",
    "entityId": "2068081531",
    "entityType": "Track",
    "nonce": "0xf4073708a4625a8a96082bdf3b7b0a9c4512527c83b2566d12d555d97639f8c4",
    "signature": "0x8eccdb832946a2fea3d22b03efa18b73606623281e5695c71b7cd647a9cb35ce6179b88437aeffcc107c4b2bd0fc50edda8596a5ab7f3479c3408a9683b3387e1b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}