{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "2119212222",
    "entityType": "Track",
    "nonce": "0x0f4060314d28790ee952fe0de021f225054e0a486867558cc3352cf1186d5f26",
    "signature": "0xe8cf1aa7b66260bf52f6983e833536f5e08833afb8f6bc680e42400eceb84d3e3076555ca950c00800cbd6df918ad6dca9e068e247c4945329d83d37da8e3cb01b",
    "signer": "0x775bA7FB8a4FF9354c099465ca493BA949FdAca6",
    "userId": "597677270"
  }
}