{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1278719493",
    "entityType": "Track",
    "nonce": "0x04a233c8475775636181816fd8269e8173fd0a3370f7d5149d80a2586922e78b",
    "signature": "0x1b43209d3f1ea32c96a0b9998c39fd9ce6e85c117cb32687fe73450ad5f3f6ac7435292a881644033691a63fbbd70c81978d9b070d8124a4fa118897492b339f1b",
    "signer": "0x26Feee0AaDc0e2d8f7aBEd5cdb0bCD7D325F618d",
    "userId": "354535"
  }
}