Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '14c967906c8c4130753d9659245a4a4b8d87a93212cbb22c223fd19d6a3be51d' 
  AND token = 'qYgcO8wm0CV7LPAmYtO9uo5eSpTKt0NIapv6zs2bv1A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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