{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "383556068",
    "entityType": "Track",
    "nonce": "0x0f264e414870510a4bf89b148cf2083944a5e9936dee337418ec8d422be4ef84",
    "signature": "0x99f5b00130ef88dcc623bd8487eaf411dc863a30fdcc375d5477094516c4835275ebc7005c8c294113e887d22183a19bcb0e81963449aa7712e7e83b6b2d193c1b",
    "signer": "0x190A63cE30FB393cf227a5B123936203c60ee319",
    "userId": "451410725"
  }
}