Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bea68809f61086917b505e0a8c6ba0bfacf1bc7d661e8257376a6400bd5e5153' 
  AND token = 'auBJ81oTYHFzQ5mnk4DXHm654IiS0L1JFOKJXS+pWdk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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