Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1d0241007e592fb82cbee7f0a1ac9d62e8264e5786a2501934faa8b5c7bf980a' 
  AND token = 'KLsT448cVFA6qJOEzVenWAv7eB3BY12FBrnhnoHlveI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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