Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4be94202586cee8dd1e08382e59cbb93c35a892016ab9eb7bb4310611b3b4af9' 
  AND token = 'yBZgz+MsMio3Hdudm8etb+H05u09DCrOZ2GkYc+vtEg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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