{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4330",
    "entityType": "User",
    "nonce": "0x80eb313d56d36e7b5458f44a0c8b171e237e2818f4ba0d0e26f1bf3e6a849c1d",
    "signature": "0x93af09efa2872fc6a1fb35dd47f765041862f6f022e632f1433a75355ed996965e6a8459a8eddbcca8a901a4f706a068d5f10f109c5cecc8e0cf26961db7eae81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}