{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "103838029",
    "entityType": "Track",
    "nonce": "0xc5c82d39bfead93627fe7e7e05c971f42a362e0127a20111da85fcab943216fc",
    "signature": "0xe0bf8634197a8e8c99e5e083fd8469a60ad0ea7995261daf00f6bf322a1e03674efd4ecd492d0f902bfe37aaafbddabe6342b96047b0fda914f2208964096e111b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}