Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2aee7aa6d3d00160b6cbc16a42e35d8637736fe9233c5556496df4adb5f269df' 
  AND token = 'thlCFP0kY50smoW/jU5+0BUyl2teBwuuNvQGn6rr7Bk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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