Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ae31e00a878a7b090413973074ff9f1b4787baa17d287e1ba78093db427944a5' 
  AND token = 'mFJW1WYE/6/mI5panEmRw12rnnebiBzpXOZqn7LYfKM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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