{
  "manageEntity": {
    "action": "Repost",
    "entityId": "521663052",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x042f77e3ae5ae1b30db03b23316ef58b317206f751a97b28b1a0b4d1b26bf5d4",
    "signature": "0x88bb098ce4a809a8ac8b2885083e8cfc26a1de4c293960df2be4581f5001537359fff99f5b2e509dd8c41d215967a8866ba71e67c778aaa499c974fa387d3e241b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}