Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6b367900095282aef72fa64ceb355ef9096580d15280af79abaf36be72dbf768' 
  AND token = 'V8dF5oTIwuIxKYi0mwGit57V3u3gL3H9pUH5aXBq3q8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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