{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "814716980",
    "entityType": "User",
    "nonce": "0x1174674b4521dd9655758aa33edba946986f2488090cc8050389728a087f7704",
    "signature": "0x79a1bdf1532f7fef7c6ed229aaaeb5eb980a0a2b85148173a0963966780238471ba44fe65dd9d1ccbbdde72cc422dc7c36bad2f9b5a723d9645a2d9a2a74a9931b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}