Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '32dd048412a1a03ca2593a5f06211cb630d7af5c5398783967a7f9a5de7bb06c' 
  AND token = 'ue/nihwOJbTWecKfTTwXdefnTBZKSFFeYUbKpDDfHJM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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