Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '29261808b82aaa50587faf4eef787f45c517c7cd0e99926ec552fa035c22e586' 
  AND token = 'PJ04tF2c17zGDQe0GOXYoHyby5MWd3cA8L4kEHe01Gs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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