{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "810146956",
    "entityType": "User",
    "nonce": "0x983249a1d615c37a954eb13bc8b6452af6d5169622111856956828180ebecb64",
    "signature": "0x7579b609e0e1b826c6a5a372e381d5e126ecee278ffa0919e9191d51b488e1da2aec91a44d1b60d88124344802e661bab20756612bf12f593a771cf2c7dd549c1b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}