Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e58729386f6448c49ccb324c4696dd86ec2c41734c6f8bf7efb163db349a5b32' 
  AND token = 'Hts8Kh//z9fe0N9rBG0PQodOzU/OHZ8Gk4B1HII4jhc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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