{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "2105156269",
    "entityType": "Track",
    "nonce": "0x4f0ad7399f24bae28a3a9512d0baa6ce82622a1b72249e8823d71d43f68814e8",
    "signature": "0x7ff1d2f9f96a4b7039c64bbd357ac3f7bbc8c9a407f8c1a0a85b2b02cb0a4b2c49093be5afd5a0bcee5337678992da2891f51f01304e955fea78939676d198621c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}