{
  "manageEntity": {
    "action": "Save",
    "entityId": "790676797",
    "entityType": "Track",
    "nonce": "0xf1c24e4fd25c72b215dd4b9f69a752814a6ea969772195758c2c04760f8b139c",
    "signature": "0x260a34839bbd6b588cdcf8049f3d380d99f20075890351ac4e6a951f29ef2d5a46e4fc864606e7196ccfa3f2cb2a03573428bfc7bbac6410f590177af31c75bb1c",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}