Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '405db6f26bcfb92176212aedec5b3ac89ba05cf48194b8edc95a27f7739f7a07' 
  AND token = 'PbnD8Ro0l47I7bMa7NHviM/WY/7tTnlBqQI7Y7f6VSg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00057

JSON explain

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