{
  "manageEntity": {
    "action": "Repost",
    "entityId": "21420016",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x73d711c5ac9e9bc39d7de6f2ae9d26eb9d1493c527b560745ecffc104b4bd2fc",
    "signature": "0x6e71e81c4b100598593ce650f45f7c8ac1257e549e33f92332646c7f4dcd1bc136eb9e718a4fc6b31cdf9a4a3f12c592d2fae164394f3738642ddfc7075528c21b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}