{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "232330",
    "entityType": "User",
    "nonce": "0x30a61465c5557e6914ab00f11336010b3db16e122d348467004eeead4254ac94",
    "signature": "0xea511aba1b351d6e0fbeee4ad91c23f4c5befde2926d8579e5ed9f1e466647c752d60e18530dd39039c5bb66e05343adc21f3ebe3e6b15914720b18446e279ef1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}