{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "73922888",
    "entityType": "Track",
    "nonce": "0x6c6358158673e8813cbfa5ed905746435980eb2e10c562921a4319974fff268d",
    "signature": "0x4f1b41686fdf883c9f33cfd8a524c68f3c3cf636da94b0f1bb146f4c8ad9fea610a84351a086041661fa2323c5f3a587ffe791447d11de8199b2edd82840fbed1b",
    "signer": "0x90CBf7c9BBF688fd9Fa4029B96e1BC32b270cA24",
    "userId": "711459379"
  }
}