{
  "manageEntity": {
    "action": "Save",
    "entityId": "24648126",
    "entityType": "Track",
    "nonce": "0x196210c53f75507eb62c49ee7daa10284303acb6bab4476806421fee3d0c0e06",
    "signature": "0x9ccbca1343c16a0c47826d61758a2002963b2a911d8d217384e4aab18579b3872a1f4fd7254be4e595ab3d961a78d375e85ecf8271c71d351609bd65ed1cc2231b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}