Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13d99ccf4e2be94f95c4cbf23c412216462d0baf58d028619b8b68dc0c22276b' 
  AND token = 'ZILeytt9sDbr7ULNSROqy7OQ+KDy0t0Exu2keO1A8E0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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