{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621506",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xdc8945cf85f63d5dcf7cc3eaa64d8ee1b2da21dfdc1eb1c661a04c49eba4b6d6",
    "signature": "0xe31a15962c150138c2a319d5ea2639701d6958051fd344db469b1f97c26772350450e7c5181274157058e14d0d8b5b627935ceb4567963be91107203590a98b21b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}