Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '05206b23d778b470787bf51d7ae979b13987419847d64fa3593cbf4d1efe51d7' 
  AND token = 'Hg5GdAFdnW4CPA9XGV/IOF1y4xwfmKXt7fMKZKojxZg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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