Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2ee964acd78766b38afe24bdfb2bf91106573cd822b3167bdf6117ba282f9656' 
  AND token = 'Pvn7cfXpKhyAihCYCIAe8OJk9g1Y8bjJtkl5RfC+Tsw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00053

JSON explain

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