Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '54aa59448765199266c5c8de901b6fc358891c5c1b9d370cced30c1b49639ba0' 
  AND token = 'yvt6V4Tm0K7PCpM3PeWsnxsNz13DV2ER9sKsCsupNeo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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