Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95222fd55fe8addac81de022a7da3af231daebebad3cfa1bcf2ec99ca2ae9d2e' 
  AND token = '4GMCWbTGflf+lujc0YRELl+pILYM937Hco9i9P8OvaQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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