{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "865714082",
    "entityType": "Track",
    "nonce": "0x67e46b66b58228addef492c8762828a010276d860a127685511966b2d4b5f9ca",
    "signature": "0x5aaacf21c038bfb1b166eeba890dfc576d42e03428af797699075f58f02034f56b5c068ef664365944acef348f13204080400a823d4019687e4764908d6734ce1c",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}