Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '608bdb768528c90f0ecb8b9f58d726e957d9f9b4896810f6f31aef17a28d652f' 
  AND token = 'fHrrCre4pA/4i7H8Jzm9QgXC3HoM8m12bmfVwAqnBks=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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