{
  "manageEntity": {
    "action": "Repost",
    "entityId": "421655390",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5ca1311671428a143416ccc13075fb2de0bbd6b40cb3eefb91e7a3ef40c3335b",
    "signature": "0x63fad0200a5c9eec965f8b958a038b74774028de2538e8d9b3b1d519c888acce2fb1cc1f89c86548d6056a8f1264f4d154255de086c58928c172265a6a1de0b11c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}