{
  "manageEntity": {
    "action": "Repost",
    "entityId": "721891",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x0d4cfbd68a564e8753845670ae367e463b153c2f8a52f4af69e0684f4fe868db",
    "signature": "0xa73075fb4d4774915eb8abc26aee1d8b40f6560d1787368189ee4711da47b79526939f23b05994468dc76a8de46328fb270a1465bce142f2a8ec2b1d1ba968981b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}