{
  "manageEntity": {
    "action": "Save",
    "entityId": "2114153198",
    "entityType": "Track",
    "nonce": "0x7f364bafaf6d5a63756bc164968532bf11cf5dc85f4f69bbed8a07f86aa12b80",
    "signature": "0x82d1c5375492659bdac053708670492da0eb4ea6e5d763eadefe419e053bdec6033420c48b4a3dafd85c7a41544182a7689574f7030280252e55d29dbb1e0ba51c",
    "signer": "0x122fB24e7FE386B24A8d1215b895d92ea4afe811",
    "userId": "632950658"
  }
}