{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57911",
    "entityType": "User",
    "nonce": "0xf9b8277a9d793b1d9c851354a07b7cfd896383d1b39e4972a905bd59b9f1df98",
    "signature": "0x36b47c61abe91b7d96cc56ed60f19921e465a9382755bdf33a26e39552844e6471b9ff9b9edf2b05b76317da225d504b4693ec57f2e358aa4c35d59b530b52e81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}