Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eecae5c07534a39730d35c0d9a54d11302ec69cd3ac00a3ec1c38f259f2a326b' 
  AND token = 'zohpAJQ97Eg9km2YoDIt+eUs+n1yPTA9sRah1vXg+mA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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