SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '222cc7bab6e9599bc8fd8ec41d3468be3e5172303a0a39921c60e6691fa6c72b' 
  AND token = '09XYjgzjuIxDvLn0jSGzU5OJz3/5KE9er5VG9KZuX0Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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