{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "483195",
    "entityType": "User",
    "nonce": "0x19e2c4a85ca0dbbd55fe26572a5fed0b50e738230d3b192d4d807a92f8ba8be6",
    "signature": "0xd14425dc671fd097e507507372849002914d3b4cd0da6b6d131c442f872d1d451d1f852e0545af68997b19cf545a95826f05102552e4ec9deb5e818fcace1e261c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}