{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x7304b47a9bfbb1a55a8f2e4651b2ba318e74811acf0dc2b06e082e153ec74815",
    "signature": "0x5a32136f41e039a8cac7a9b53684eef9494ceecb15df1ae667c6bc36c4148f8d7c69541ab8d1cfbd8706917ee95dc46a3fc9a1d7d3d082b07fef49048888c58c1b",
    "signer": "0x5Af531A9cDF9747df40f57531227d70F1bdD2ed7",
    "userId": "511108744"
  }
}