Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '08254ba4e2cb8bcc28362929f0e27d04de0db644050177a6a99440a353645fbe' 
  AND token = 'zwGiWW3CF9hKRTb1BQFknTtp+Kvb2hK1tIS45lTQkQY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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