{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1873524442",
    "entityType": "Track",
    "nonce": "0xf3b958f92b0f475c5619f4965fb1368f15c38d608302c2079f9cfa927f9f4895",
    "signature": "0xc9c1f9b6a2fb89ba5c1ecd814c88d8cae0a4752878490b3038bcb902cba7de666fd2f7a4d277c460b2d8d5d9f7b7cdde9f77de49e8927ed763c8b86848603ae71c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}