{
  "manageEntity": {
    "action": "Save",
    "entityId": "1265655952",
    "entityType": "Track",
    "nonce": "0x32076334424ce6f2da256703dae43c56488dd560196ade72328633fed1389854",
    "signature": "0xad222ba63d94844c0114f55b3b952312755d2a43111eb8811c8652241e3648ed2a45fb2e0210a072e1c6b6e49e546a59989c1ec76eae5572de45b8afda144c101c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}