{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "775930515",
    "entityType": "Track",
    "nonce": "0xa626ef2d9f39c502596c9b0f3e1632c8020a726f046579b0ff693d17eb7a491b",
    "signature": "0xc0bf14f91f3fb2c972ff94291d8ba79f942333cb2d1df9ab05b662a76438421552d7d4182ab2ae0935280d8b3084e019deb3d5176b55edb518da4e925933a8401c",
    "signer": "0x01eB7915E4941D64a8ddf370bE06647ad5F79d4e",
    "userId": "911613164"
  }
}