Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cec7d23753a47ba182af4b8b6d8e20c31836f61854f4712ae5c19cd117922562' 
  AND token = 'm9sI9yXf5yted4LAG0QN56kmBUqD4oh70kFrCn/idrc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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