{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329785",
    "entityType": "User",
    "nonce": "0x806524dcc00b2c62aaf614ca5c19ce34da58151ae5916438c1d1d6a796505e36",
    "signature": "0x844182ff47387d321c5b13b672ca5716c78a6321f55c28b34dbba59708a1c80b4fcd940ddb62fa5041bde04238894d89c5810168046555452cb7fea9f71ced271b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}