Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b0b0745821e403d335198a9718c8f89084aa37172f79165290f1417d06477e6d' 
  AND token = 'WyYmv1Sa01go3KCn3DZUYwd6rmzQehr08u8p0heiY24=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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