{
  "manageEntity": {
    "action": "Repost",
    "entityId": "519253449",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb3f84c00e7a7ed8b40aaa577403aaa8a2417d50929a064a97da84328a20a1d40",
    "signature": "0x8348d5ebe993cb7e1ed39ca08c76239faf61b02d264fca8324ff997aee1a90727fb19c31307d8127d437c7ba5c2a16fad22777c34b7ab90bba768523a3b6b81f1c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}