{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "466580398",
    "entityType": "Track",
    "nonce": "0x12eb322d14c8c1dd8f8f6faa2fab4630134d48882c58725871ab55ea4ab5af2c",
    "signature": "0xb210bb6416a65ce333d6fc40708f712cde572554394c2885e12a21e0c9bb61773e1cfdcb6ef94a33bc8e3c30cbbed84cf897875e4b01cf74ae275d90452a9fb31c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}