Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0594716e9381ba231b52099109f23e3f04ae6d1e7479076f639dacaf31780d6e' 
  AND token = 'pQyZeWRJiWpDT+OQlvRfw2zcllmmV04Lnk9LRcYr5pY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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