Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2b2202e837c01ecc333cd570a15c823c87f5c79be48b5958854ff104ac67012a' 
  AND token = 'XoHC3ekKF8B80fpy0pO9KM6ulFQd2d99wocf0PEWzWY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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