{
  "manageEntity": {
    "action": "Save",
    "entityId": "2060703167",
    "entityType": "Track",
    "nonce": "0x203555b3b1e3097d43d1885b983efea0b2959f8af5cb8191dfacb235aec31d85",
    "signature": "0xc785e3853fc637296e7f9c231b7acfef5f20abb6c19801d638ba1ec23b9e9b785d4d6d69bc09b7815c1dfcd4ee039cbde9907c43dd3e557a3380b2bd38c203e11c",
    "signer": "0xf765901fa8CEf102E6aB615eB224ff151Daeef98",
    "userId": "582942186"
  }
}