Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c0ca083cd71c6ecc219151394bddaa55b812931f0f54458b0224f11d095925ab' 
  AND token = 'jziIqhYNHTxQi/5jex6Kh5Z+7+JNpS8EbsarMe+dMng=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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