Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0f7aa9e74c3ebf938b0c7b29298f9c0b793c5a5cec00cd6b5313960a965bac32' 
  AND token = 'wm2liicS9cPDlwnvltm97oJ3H7OV0G7Hb2cJEY/2g50=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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