Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '475dd89b89df095ba53c50eb12752911022bb55ce15bab3e39d6de88ac7e0309' 
  AND token = 'dCfrYauFc1RW/4rBnY/4UdSZby4Xft/iV9Jfy9QoaZY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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