Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0eb725b94d29c1ad2279b900d8d5c7c62c75d312286f33af843ffc17ef463b48' 
  AND token = 'lSyye05kqj7CU4DPYG3Yt+CgyYJqHYXt8q4uwW2WDcU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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