{
  "manageEntity": {
    "action": "Save",
    "entityId": "79266",
    "entityType": "Track",
    "nonce": "0x5c9e059b7eef8971f920cf136a805be66f232a3b9d619e23c00b212953faf11d",
    "signature": "0x2bfdab45f0346139fbcb36bb74ff699a24f294ab55e74f26b51e4ff46ecd28153419f369b497c8066ae873fa4869a2056d5045bddd1e7d7b15e121d6b380d44b1b",
    "signer": "0x03e9Caf2aeac5a0F0e4Be56410d67A4148D38Fd4",
    "userId": "47828528"
  }
}