Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '372afe1a09bd1b038ca1701723cb73c50707408143437929781a17a30d3608b6' 
  AND token = 'g/d5lV9GFLy7qJY9CYFeN+Xl13349g4nFAkJuk3MYgo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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