Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '489fa60e98ff698ae5e02556e35980e0a8d4484ddeef895158e57a30795b45c6' 
  AND token = 'X6sF0hKDENSV6tVRw1L9KiqKhWg5M74gcCKCj6Dff5c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00076

JSON explain

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