{
  "manageEntity": {
    "action": "Save",
    "entityId": "1924218624",
    "entityType": "Track",
    "nonce": "0x5350e4558d964af55d0e7a2b755db13329e98082af23f5ae5615f9e1d5570be9",
    "signature": "0xe3ae2ed59380cd2c473ba16bdd1ed319488951c2687ee28eb8f3acbcaba667196ca30530159f1cb818f10f2f29652e61a922498f49f931ec99613406e2a9ea3a1b",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}