{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1617048350",
    "entityType": "Track",
    "nonce": "0x97541ff77cc869b26e7300285ede153f340b887eac2b801b74b8d0632fd53911",
    "signature": "0xf53acc760193ebed3fe4971765cf4f6828c229e76b56686e8b25e5d3bd8db58b26257ccc9cab875c5fbd68c3fbe62bc9dcab9067acc4d6d4030a0bec51dca7351b",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}