Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1745eb0e62b801ca82d2a549b1bc2d3de7036fec99e11081db8e3e315ed3bc61' 
  AND token = 'no+priy+DcP7EnGBvoJKl3WXaGdUwgk56HNWUjL7weM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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