Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ae0102f252fbd43d50ac89a046bb8af47f93385c26539961e0fd13bc21164dcd' 
  AND token = 'p26SuaBr6GCNypDh/Bfp3x9BpReaPNNWrCvouB5CWEs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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