{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1877690734",
    "entityType": "Track",
    "nonce": "0x9220110afec4c5b858164a8cdaaa3de15ed0db64eb55dfb33a29c2d513b758c3",
    "signature": "0x84c7ac9e98bfc3b25ef824c5a832620d6fc1dd256985e67e601e7a34cb7482c57c142aa55d11b1e58a6e61d7e695a6925f9c7bc2e7dbd2a1e67670476d472ae31b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}