Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1cc5cac570956844a667ddd0d57780cb83a158169758e547e82125ec73ccafae' 
  AND token = 'sFCVvy3FfsdaPlo8F9HG0LVD6WN2Bpdw76/yfH0mIZ8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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