Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '25f850b34c3f158b5067224962342fc60d43416726d4232807e0b288d89c2795' 
  AND token = 'kBoI24/Amubm/YbWg+y5W/GxIcoCEB+c5rKIXNm7cJs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}