{
  "manageEntity": {
    "action": "Repost",
    "entityId": "574590023",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x9f7e546a6c8fefd7740d7e9e41b4c860d5358fb97a73f5e1830af2c2435f40f4",
    "signature": "0xe935c5825f258d3f19310e98240872f1ba49e33431efc5f14bc3fb07bedc5adf4b5f57ae5286fb1dbb2d5d5046ac0090a915e86177e6aa12419443076fce5b871b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}