Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07b1e7883ffcb36aa5cc20cf998ebe8ce04bed9179a9590b1648c869cb4ae818' 
  AND token = 'A6YdvosAvrkqWqNDTuoueESCIdqLgHXz4FYR4I7emrU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}