Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1c41248ec23ecdad1537c5e5a30e98e9e51a5806b728c99e486bfa7193581bef' 
  AND token = 'd8nu5mxUiiG55mW59ur0v2BT33/XsVIc5QoOekll32w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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