{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "178406",
    "entityType": "User",
    "nonce": "0x2b158b5e8384fafe6671ee6b4be0ae4069c3991ca9ec16c93eb67373abd1c638",
    "signature": "0xb5465bdcb03a622783b2dcc33eb3dd7c33905ebe1584206db32d1015bf25c7e439c9c61bd2af14f8683510413e58a80c85beddd267fb6b98c2b81b04d3a039791b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}