{
  "manageEntity": {
    "action": "Repost",
    "entityId": "519107",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb4f09e12446a32c921bdd01c89fbe70231dadf9f958987443ea192e63ab83c40",
    "signature": "0x34bdd4e23981a713570130013a2ed1489ba8343b44f31ad9b8f0e1fd6afe06521d8130fd0791e07b9f6ba5b868c98b47f46fcbda975d3caa1c82c68bedffa0fd1c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}