{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334948",
    "entityType": "User",
    "nonce": "0x6c620eebff4dcc2cee14fc56c0212fdbc387d016a4c6bced4cc99be948976438",
    "signature": "0x1a29f289e657da2e76259c242980196754596123c2b39f58b1a7313c177a4fc155d681f3a89d4cf91e4ca5fa853cd87c1a0351ddb6cb8a1edae014103ebf5e191b",
    "signer": "0x9f5896C078219d89B9A5D8B9C381b7be8BEf4CFA",
    "userId": "56704236"
  }
}