Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = 'cc3a6dff8aaeb7570e05e096b37aecde2e08500cb131ec430680a8786ee3411e' 
  AND token = 'HVRBMMaNCY17odAyMPfKFz9HIGVFB7fWYXpubJEKSyg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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