SELECT 
  1 
FROM 
  tmall_lock_keys 
WHERE 
  key_id = '0eb2eb2378c8f75d26c5cb4ae3cee7fd94cbb65ca83ccd4c6666df1dd6fd9fdb' 
  AND token = 'rUAMq2O/TBoWCgCZN3hYXeFD9p/drxXOowVLKrlOxJw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.01461

JSON explain

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