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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '022f179d214aae791b3d460dd5ce00601daf7b59276fb92b3897eb082d2b249b' 
  AND token = 'ZfnA6toB/CB+/qDqWRpqNJEmz8k6EmXWcUp9mgxOd5c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}