{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "388940",
    "entityType": "Track",
    "nonce": "0xcb2881075d33f19a681e128afd43d5b590edcccdba8256644dd8bfeca8bcfe9a",
    "signature": "0xf319aa35d8db5be866b80ef4fd11c274df99a8be45126ab1b7f5d06fb1272a09169a7a6da3117139f615ed6271d6617cfeb128fd46df4618cb008408ce6e818c1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}