{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "292907",
    "entityType": "Track",
    "nonce": "0x4056910d139657a5e52a0c9bf7f66d2a820818c403ca59ab48ef0e7329b43448",
    "signature": "0x8f92fd1b7119f88238f75b32c1254338075b9ac5e792955f27234184af01198f498fd91eb22d6d271a08caabc92fa18fbe70d891ada08971c24389c5f81f1ba81b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}