Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd62999b0350c283abbe98e5873fd03e06eec86d028584b9ac1433dc7c7881e1d' 
  AND token = 'Hd8WlWmHh25Ad5RlIN8Vj5sX3Rdbl7BQUAV4W1Yt6iU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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