SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e32f6886d544d49658a4e4a70ae0049c3d451252d06f30053c49664ac3630140' 
  AND token = 'O+cZyJ44bFQdRanlFlV7jO4YpC/z5OwJngRKDGIbpYI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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