Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'edd1dae8a0c1a4177afcbced0669477fca6d15590fabfb04fc79c6e9f147e0b4' 
  AND token = '1hV6NiGpWmrntTVVhWK9qg8igjtHyueXz4jwLLuJpN4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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