Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9f0ee9a9b4c0ececfac4c0feb752c04c8e1a6f48433303f25c8b719d298bb934' 
  AND token = '4JxuksA0vceXN6uPge8Y5j9aHS7eDfJfDaso9wOD9pY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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