{
  "manageEntity": {
    "action": "Repost",
    "entityId": "503741",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x7a77d69fe7317f791f02d6bebba2a8d48ea225361e8e23d24c36bc680d8ca5e8",
    "signature": "0x3fe8237b1c59b8fe66c2bd563eff5a08bae6cc9e38edf64e80252f0690607b9c41e53d1ed25bcb20c145b3b90ee9d26fd7c3973c540f5ff9a0f9ae13110bb3231c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}