Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6ae87d6a7360cff1e3006fa3d7f237a540283e17c4c6610714a82ee3b1b124b7' 
  AND token = 'SMhyqQdU0+YuvNVZtJb887koa1v5y5pn+e5qkvohIF0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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