{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271040",
    "entityType": "User",
    "nonce": "0x18f57c062c2a047442d25a4c8837ba64d2dfb424cef2e6829d73e50e8042aa66",
    "signature": "0xcc633c4e177649baaff6dc0943a3f608bfdc837b96784211249c19a838d1ba756534db33fb85e8b2d60f48610cc532cdf924edabe7aef9da1d32f75ac7ce8d9c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}