Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c333d9bf141923cbd29c1be89c57a7adaa66584dff30b11bda97207340df9c14' 
  AND token = 'Lkr5Omya5VenauTjcPAnkGAlLz5ao1NUxf5Y2JE0+LE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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