{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1692338",
    "entityType": "User",
    "nonce": "0x170305910c5f1d4647fd0a2be3bc8c69c9a2e1ca9df3407d2b897b29ff4e1a66",
    "signature": "0x048b1eadadcbe010087f62d7862bdd873a0891afb714eefb07118ceb142bf8bc279a2f97bc6153972185f86dda83538c80df0ebc0ab5940ced8d04f14e1b23051c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}