Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'abebfae59e3fc7ef20076e024fd3745dec6222f9ffbfa73353c50bbd33a103d3' 
  AND token = 'iWFIHxba0GjDubG/3/Tu1WyRFAsV4GA1hiX8Ylt9etY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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