{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "676063617",
    "entityType": "Track",
    "nonce": "0x7c9e111718b55c93a840141b0ba59986bd7815f92091ae9abd95753d45884819",
    "signature": "0x6f0e7131848fdd35b46b6e15c436237f36d225c67dfdf40ebe1c460aa98ea3b82ea0857476f32d3089c7764b603d0042e5c3228e7269a8e86bbb617ddecf86441b",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}