{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "630374626",
    "entityType": "Track",
    "nonce": "0xe8b0c4e6c381cbc84dbb089a5b230ff2c84194bc1c41234f896f3c4831bb32b1",
    "signature": "0xafa2c6713ed98cc274e70bef9864d693e2722fda6ee752b9a93470ca0e6f329c11342e8433cbcc88315891ebd19ce755469fd5038b57db80e488fa1def1429fa1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}