Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7aa4ec5f042c915bc419da28a7d4a69f04778c90630bbc847c970b84e74d3852' 
  AND token = 'JkYz07iTPE9ggtWeCzNOcYB9aZC5Hda6RG34I1c/lNU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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