{
  "manageEntity": {
    "action": "Repost",
    "entityId": "551507307",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xfc5f42219b6f1b595de2441d59cf4681ddb7a7a82164a8746c6f1b929b6866c1",
    "signature": "0x0377cfb4712ac62354003f14012889b8222d70f227292204b68a42777fb5df4550adefda700d65c81577ef08f03ef29be7e8dbe9865bd3c1d2e4666d1eb70a041b",
    "signer": "0x6499C9308c8eF44f014d4754bEaC0BE189B838d6",
    "userId": "27388"
  }
}