{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "622320",
    "entityType": "Track",
    "nonce": "0xf399fa1e70f3b47e43db8c027db6e3b22f2a0ab3c12192756d79565170b52cd5",
    "signature": "0xc23dc356a1222a597775807b671b68f655724b2892a6c7864e1ac0a299abe19a1d70c9bcae7c62ba7f78ce563e9c9585ab2d1d412aab503d01a82d572903592e1b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}