Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7be74640545cd75ee54ba6de6db86e1eda5a9af9238f96470a1219f7bf350d00' 
  AND token = 'gWpMUJPc56jbx3jejVeL9bzLtpvu9EeRtqPa3/ryzwA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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