Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '600ee5caa5c84934d9ecf34ee90b085521d2f581561ba302d366e4a45ba1603d' 
  AND token = 'Fqk52wZKpjHZTSfI8P66q2WoBf15RzFVvnQ3Iv7h36Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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