Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6feb3e85449831cff7c38f1dec8e03393feb3854d5ebb02881d4be15b9098c85' 
  AND token = '22yQjeeOU92xypIEG9+szMRpUe+ENj/McY6ZtqUZI8E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00166

JSON explain

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