Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'f2ad598645b36d7862bd98131be3471f08406dc5cc72585898597fddd4a0a923' 
  AND token = 'iZ305a0NKkMrfH8QrOuTA98sqXDzP/p9pAYXkUHNAXg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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