{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "341087259",
    "entityType": "Track",
    "nonce": "0x8e1a18b66d147e291bec96916d8b70cdea28239d4c5fd1de04233a68b3d6d36a",
    "signature": "0x6d52f33454acf05cab08b6e5862cdefff2aef3cabe11bde68c27599ee29af2ed62362a3d7eac09c9dbc089c8de35d7fd3af0b0c61b5b79b220892a5c16f287351c",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}