Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1e33667ba3b3dd899f92caf4acbe9725e99f7f176e2d0f80bada410edd750d2b' 
  AND token = '82cTlMN1EcjfDRieLa/xs3dsi7tAexaz++J7fi+ORZE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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