Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd161b45411a872f0ab590c283bb81f817fdf0fc2af0cc4ce09b0124e3822290f' 
  AND token = 'qDoRmRwgdyO16u4GwploCdk4EpVe/iQpd4+8lT9KJws=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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