Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9018dca4c211d9aed953fe2f994ff82adef22fa3ceb37dd0d34c5c3777240ed1' 
  AND token = 'A1JAIQOr/zEcpAJx6L4BU2lq0xL6mmciJXxXqlg+A3E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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