Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1c92cead8934abe34669c2324f1aaf7e244b12204cf4e73160e96159e5051431' 
  AND token = 'uKa9qvVbwtHGn+MpRrN+cnd70ZByQU0R8ddOxrWxqeY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00056

JSON explain

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