Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ba2c1721172431c661a92716c58642a4d11894abea116205c0770505d1721505' 
  AND token = '4e9ib86OyFW/Q+eCnH6K7z33jT2ct3IQAAzehu/7xcQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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