{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "61944",
    "entityType": "Track",
    "nonce": "0xf8e42d708d9e0d1c87d1a7bceeb49f4a5e4cc1172dc8eb27dec969bc723bf09b",
    "signature": "0xe2019e8b87b7f6c86c6461b1c10a5ebfcc475cb40a7617a6410683c90a29e00b2982a895064fb17a6527974eea922088470cfabc1e5e25eca25f807b504674cb1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}