Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64c41c8d20db2be77cf37b44227e0143c78f0ed1ac4a4a6f65fa5a4a958f3179' 
  AND token = 'c6Z8Ks5SgdKdK8XWFsjgi1NYOqMo/iw5TgsgPpPdlpU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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