Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a4ae95cede1446cdb270262343bd33d5734fef094dad3f25a4af8aea80180cb6' 
  AND token = 'osE3GDNnxocoj0BxjRWd9d9ZszH3lWpmy9kluyl7wJk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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