"ethereum_txpool" event provider no longer serving data
Currently, `ethereum_txpool` event provider is returning internal server errors. On the server, we see this error message:

```
Sep 27 15:30:48 ip-17-29-3-114 moonstream[79986]: ERROR:moonstream.routes.streams:Error receiving events from provider
Sep 27 15:30:48 ip-17-29-3-114 moonstream[79986]: INFO:     17.29.0.128:35000 - "GET /streams/previous?q=type:ethereum_txpool HTTP/1.1" 500 Internal Server Error
```
diff --git a/backend/moonstream/providers/bugout.py b/backend/moonstream/providers/bugout.py
index ee96698d..1ace3ce9 100644
--- a/backend/moonstream/providers/bugout.py
+++ b/backend/moonstream/providers/bugout.py
@@ -16,6 +16,7 @@ from sqlalchemy.orm import Session
 from .. import data
 from ..stream_queries import StreamQuery
 
+from ..settings import ETHTXPOOL_HUMBUG_CLIENT_ID
 
 logger = logging.getLogger(__name__)
 logger.setLevel(logging.WARN)
@@ -376,7 +377,7 @@ ethereum_txpool_provider = EthereumTXPoolProvider(
     description=ethereum_txpool_description,
     default_time_interval_seconds=5,
     estimated_events_per_time_interval=50,
-    tags=["client:ethereum-txpool-crawler-0"],
+    tags=[f"client:{ETHTXPOOL_HUMBUG_CLIENT_ID}"],
 )
 
 nft_summary_description = """Event provider for NFT market summaries.
diff --git a/backend/moonstream/settings.py b/backend/moonstream/settings.py
index 0a90d751..d18bb852 100644
--- a/backend/moonstream/settings.py
+++ b/backend/moonstream/settings.py
@@ -46,6 +46,10 @@ for path in MOONSTREAM_OPENAPI_LIST:
 
 DEFAULT_STREAM_TIMEINTERVAL = 5 * 60
 
+ETHTXPOOL_HUMBUG_CLIENT_ID = os.environ.get(
+    "ETHTXPOOL_HUMBUG_CLIENT_ID", "client:ethereum-txpool-crawler-0"
+)
+
 # S3 Bucket
 ETHERSCAN_SMARTCONTRACTS_BUCKET = os.environ.get("AWS_S3_SMARTCONTRACT_BUCKET")
 if ETHERSCAN_SMARTCONTRACTS_BUCKET is None:
diff --git a/backend/sample.env b/backend/sample.env
index 779bbb0c..6c44a369 100644
--- a/backend/sample.env
+++ b/backend/sample.env
@@ -9,3 +9,4 @@ export AWS_S3_SMARTCONTRACT_BUCKET="<AWS S3 bucket to store smart contracts>"
 export BUGOUT_BROOD_URL="https://auth.bugout.dev"
 export BUGOUT_SPIRE_URL="https://spire.bugout.dev"
 export HUMBUG_REPORTER_BACKEND_TOKEN="<Bugout Humbug token for crash reports>"
+export ETHTXPOOL_HUMBUG_CLIENT_ID="<Bugout Humbug client id for txpool transactions in journal>"
\ No newline at end of file
['backend/moonstream/providers/bugout.py', 'backend/sample.env', 'backend/moonstream/settings.py']