Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '932cda0a9322fc0cde9adf47c08b34cd32c5f0adbb4d8c3beb1dee0e9ed48271' 
  AND token = 'VoCciGtBi2tgHJx2wOSaxV8P1uNdzk0xvbZ3vHeypFw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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