{
  "manageEntity": {
    "action": "Save",
    "entityId": "282299",
    "entityType": "Track",
    "nonce": "0xcd2f69ca86b75c22ae36ad09e5f71230f5a8fd4b09eb478eea71a76a394c61ac",
    "signature": "0xb176aa1db08fecd890c601d07d4ddbef5718b7bd42c22f0b66e54746d6ffdbd83d3509985e6730649a899459dc7a334ce1381a081bc469728d830b088741dc7d1b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}