{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120328011",
    "entityType": "User",
    "nonce": "0xa6957ca9f8b2ae1e3c7e4cebb6f6c2142d9fe836e45a341ad6255cb43394072e",
    "signature": "0x311ef151f55190ace45e895c83d866995d1d28e094bf3e4a5dae43d92fe267be21d577c8d70459348d24d8dbd8f701ca059baa67dbc78d83e91fdfde97e5e92e1c",
    "signer": "0xb51B50C9b7d88C66d31539161F4BA9Dd72a17dF5",
    "userId": "465531556"
  }
}