{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "2136685021",
    "entityType": "Track",
    "nonce": "0x9fd9b0d49f3beaac579fc842a54a00e234b6979975865f6e73af152ed804e409",
    "signature": "0x56e569c33e6f08165eaa6cf081803bc83f3665339bd31dc265d0b6653047a760501db41d674a56b88d91625f4f15bd741178459773ee160b255bd9327f00024e1c",
    "signer": "0xBBBE9eFc177a4E708d317195Fa81aA6E8E2F7E92",
    "userId": "557135181"
  }
}