Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2d776055462136ed5ccc5980dc98de041399982d99ea9c39f594dcc01df6252a' 
  AND token = 'kfmBciciKiz+M5u3nTT/0NBKtF38hX3AqoaZT9Dj7Rg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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