Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fa0b648a5d6d11a4c32a5e61236eb3207e0e933a314a6e8058ab7c696774ca30' 
  AND token = '6WPnnITvLboIPxCJ8dEeSQaRZeR8jyjAYDNARAUJFps=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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