{
  "manageEntity": {
    "action": "Save",
    "entityId": "11312315",
    "entityType": "Track",
    "nonce": "0xc5c87e64dcf50b86f2f183017b83d1f1516c5b0b3f88fa224ab2b01eee5be0f3",
    "signature": "0x140f897094c10544cd35f73c3fe8e6ba2a53d3a4178805cfac23cc7e92cec20c5618ad2afb355a00bece2c58ab5ebb394b36a075bf349c14fccf236e1ef0d6cb1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}