Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fa7aeb761e83b7cad83454c77efad6332b28ee5bbff92153ff1f6cde122fbd0f' 
  AND token = 'EiqppEXzAwROZDlX0jbnlSAqAJ8QK2UWuqHXJICBZJw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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