{
  "manageEntity": {
    "action": "Repost",
    "entityId": "438477",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5ecfd817377e106a1bb750150ed3a21adbe2f40d757ad6b30caf0fb37afcb4c7",
    "signature": "0xa61beb0288e907c770c8f878ba986eb414990e9e3871564a8bb081b809a701be5d272f33b2701b192ed587815cb3718bb7d89669bad5409d39c5fdf41290e6201b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}