{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "445115",
    "entityType": "User",
    "nonce": "0x4b5d1be8393092d56c791bc50ff17d7c741992fa7baa5d77ee953be8dc2d9638",
    "signature": "0x64bfc7dc7862a3d459dffa7918751498cf4ecd12ea9b6315800ba35e9d6ecfa07063cdd3d2b34e14489bd227a669faa4734f6a237565139b3054b30b66650bb51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}