{
  "manageEntity": {
    "action": "Repost",
    "entityId": "439389263",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x3c7798638bb63efae61704315e6461d991e225a3367d8d30ddfd47a6d61d4f7c",
    "signature": "0x1350a62dfdba748b665a78cb4f8d95d711975599634014145ae6cef04365f48d79c078490db62ab836ae4bd97dc6d95be1369907f0c0cf639c98f0d90f34e9b31c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}