Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ca62f8f13df2f241d81c97e3b61a3c351688af2a5f19024c4f2b9e5f4c0a95db' 
  AND token = 'H0HGtUukb1CsFKvpSynIhkQJe6eaJGjH/XOoV3PyO+E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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