Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '65361d14d175354ec08a31422bd6989b0e8839bac6322a2fb4260c627088345c' 
  AND token = 'o0T3ae7T5iwA4UNfyjuexPa82+7ktIvWoVj+rxdE/SE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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