Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd54289a234db8a2cad4e0c91b0674339c7e039d8e5b705b3606a920b5390f3e8' 
  AND token = 'ikKzuK0kJqyQaWPcy1r0GXWTwbDddv4A8hykjYjdqbY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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