Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '784e496feb05b27fada6c77801d2ad7f351a41149f32171ac6f36be57a07f19f' 
  AND token = 'uAaQC4NhqoJ5XgVDuO/rcu3e4l6eTn7qvj1QzpUVEs8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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