Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '182939259c1f29b6e88181d8a60698ecf461bd2bd6bca7954929b17e38f84abf' 
  AND token = 'VTvEwVCaCykx5/qovsZQs00GEH3E8omNgpVhPHZyQII=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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