{
  "manageEntity": {
    "action": "Save",
    "entityId": "7036944",
    "entityType": "Track",
    "nonce": "0xf9f737820a61f18d2ca7a6e4370b49cddd346b0579c8133d1a0e529a3943d746",
    "signature": "0x1b0801bb04c8db9fb6a25097c2a559ffb7ce804713e6463c644242c124d2e8ee298d4c642e87d857a10ac707235d1bee8535af6350c1c68ebdcfd73ad119a06c1c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}