{
  "manageEntity": {
    "action": "Save",
    "entityId": "794094936",
    "entityType": "Track",
    "nonce": "0xc73397e8e60c840ef3b52ea95148f950f00ecba4864fee44588748955affab99",
    "signature": "0x36f2f11087ce7c8fecebd1d1da9c08f6a9ad911be325b9bc56118c383315af9d1e2d1dc5a0ebe9fb6b7654d656af53fb477aaa9a15c0ce3fb64dcf4876d980291b",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}