SELECT
timestamp,
json_metadata

FROM Txcustoms
WHERE 
CONVERT(DATE,timestamp) BETWEEN '2020-12-01' AND '2021-02-28'
AND [tid] in ('ssc-mainnet-hive')
AND [json_metadata] like ('%"DEC"%')
AND [json_metadata] like ('%"null"%')

I use this query for DEC transfers to null ... you need to parse the json data as well