{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1922452732",
    "entityType": "Track",
    "nonce": "0xb9a61c5a38a457670dce851dc4a1a5c67f8bd476c3c3bccd786c45d09cd38568",
    "signature": "0xb656c5680de77758a2060e33b572120394e37cbb3b05dc3e599c48da15b8accf2a8e4b19a487ba48789a3ea7569d352c7c1c71e582cfb39e8b74792ac21909951c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}