{
  "manageEntity": {
    "action": "Save",
    "entityId": "36820598",
    "entityType": "Track",
    "nonce": "0xd528a7fca9d4c361844a5d6844820889226d50f63f5ec7341ef23f32aba3fcec",
    "signature": "0xddb32852077b24852837ab25e6761233b7d02211f9090f9484c8e3f6e0c8329a5a19edc541674e1ab8fb43da3847d101006aa0e4c4ec86016e3fcd71579efd2e1b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}