{
  "manageEntity": {
    "action": "Save",
    "entityId": "80010",
    "entityType": "Track",
    "nonce": "0xcea38a6d8effc45bd79645ff98427cb4d078303bf7222678c9e9b82b59c6cadc",
    "signature": "0xd3f0aac73854bb4f6a4e1dd7aa820553d54f112146404cd99061f2dad571ad5f7bc843163a479dacc875139079f1cf6b5d50fecae0a98f6e7c342f7e0d0441e21b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}