{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "156448",
    "entityType": "Track",
    "nonce": "0x118f48bd6a176af3d08af15002253330a3a06c8d0574792fe43667cc71be7e5c",
    "signature": "0x2911ad49b516de8dea6d61dd0144a5fefe83f30e4b55391dfa05cb6e300ee2817481b8710f7e2dca8d2fda5ef4215b71173b14a9a7635ba945ea923c32bba40b1c",
    "signer": "0xA01ebc830d66b9A7a47A2EC95BcA34ED6EB49a45",
    "userId": "463524416"
  }
}