Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '963ea736661201822ec3b9d233c5a06c6cceaf31c309ad6f3990f4b8d7b8a95d' 
  AND token = 'JXRSEPoehRTatAmz+JVdx/ddV0p6YnL8UXM2udo5YpI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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