{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "415330096",
    "entityType": "Track",
    "nonce": "0xa9aed4befc202026dd322c38cdd01926d60724973b871af08c3e2b380d29b3fb",
    "signature": "0x2a6727934c4420264e2cce9c66138598635b93d88f90447542ebae24cc1fc8bd3b3436c629d46a0526885eae654f8fdb2d51a3e4635b090940ee491de67ec4891b",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}