{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1521389516",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x1621500520b5b21b102b2e3165efaac027a954f9bb609b29e55789b6fcd59cdc",
    "signature": "0xd728f2a6281c6728518c3817c0bcc689ea0166d25d0fc7e4cc401b3abd4689475eecd24d117222ae56dc319530567f4882b008f9b7a7ae017f5dd1d64de9492e1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}