{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395354603",
    "entityType": "User",
    "nonce": "0xbb490aa288f540df85b8904c165dd59e43d2d7b57be021fb1f09790adc139d9d",
    "signature": "0x838b7f835e73575bb1705fced0bad314acc08308eab35abc2ea0ea0bc4021d621060537fbb139e537acb0a04a6b92cb4e009fc29462e707986545c91c4bb2d921c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}