{
  "manageEntity": {
    "action": "Save",
    "entityId": "1014880935",
    "entityType": "Track",
    "nonce": "0x40a5db6ee5a599d653e0575ae64009992463d5bc549ede72b6ba7d9ef60931c8",
    "signature": "0xbe33539ab10e8316bd484b57f9c0093959ecea55787283d778f3c45e9bb1506b75ceb381fb3d226613e683464e09fc0f7e49f41efc4f8118d1318938fd7c4b1a1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}