Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2ff872272dfc338afb028cde1161222248b4e1f27ec14bf6b130c5cf5f94b561' 
  AND token = '2dxMPXkHXw7nJpfsuRM4G04BlSUvWxdNMBKGv3WopIA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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