{
  "manageEntity": {
    "action": "Save",
    "entityId": "70362740",
    "entityType": "Track",
    "nonce": "0xcf41fd35c70d59157939a2b5fe3aabf3451f069cf1334545c7297f92af7b6193",
    "signature": "0xe358718a129538edbd0f7629f64a8052c6e4d372174853b30e7d209cb1f927bc0f38b75bbea8de8938063aa44763066d38b6d1808562218cdc640d2a882acd3c1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}