{
  "manageEntity": {
    "action": "Repost",
    "entityId": "521780472",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x3d9d28c7209dab26d79b1e39ce415364b776cc5ac8f497fae59ae5b193d05991",
    "signature": "0xb75fe458e50e03479aab2ae02b9aa5ddf917668c81e524b9ccec8373d525985850ce55717f75136443aefd5952ba1cccf439cfc8d10c424848d8635ca16f653a1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}