{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1360356243",
    "entityType": "Track",
    "nonce": "0x0016be0f58f53618d88392ca6f14a566527fe4dc6341c8d3db0c6390866b4bad",
    "signature": "0x62a9c1e0dd939402912a75c3d07f8d47db6842b14aa107a2751f2ea673d8b68543902b37ea128c486f447e4f4cf17cc41993786afbe7c51d6d6a46aa0c1e6e1a1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}