{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392153838",
    "entityType": "User",
    "nonce": "0x765bb3f80a8d7f2a78eeb90b8776011038d38549dc9503b5d22945772a58f3cf",
    "signature": "0xd5b90ca9f18d2f8ce53450bceeee41c4028a0b79009d529ecdbf496ba7efe7b70edd60d3ff908e49ac75eccbca1bb8a085c67bfee5532eb6854c9d7993c293cf1c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}