Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60212cc07602bcde9159115637033f3fca5d59cda79ebea5ccfd06d96ca2d13b' 
  AND token = 'WxU25MIgAn3poYf9DcqQUzLzZmPol7DJZ9vtL+qVu04=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00081

JSON explain

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