Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '91b2e2a6d15c25394da3b40dcfaca319bd117d3ff3144d125ea363e57d20471c' 
  AND token = 'sZo6gK0+E6D0+8q2seh9FCm8Nak7jJ49ISXjYh3u39g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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