Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bf730c68bab15aed5d1e733922ee246f1a53c7f92c927a5c696bdd8afaff3208' 
  AND token = 'FVEnBAUIab+h3IYhyXejd66drRSk73UdE8LNlHTdYFI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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