Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fd30029b0770c05e0b7a746075e26e0056b0f67077099810be907d86b3b735cb' 
  AND token = 'bODAx09dMVSukUGmRBu12cWHdQjD3kGujkHQx8n7o7U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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