{
  "manageEntity": {
    "action": "Save",
    "entityId": "1480010935",
    "entityType": "Track",
    "nonce": "0x4272440fd9dcb3986bc4e84ba572aa125c36a55c0dac21ff07f5100ac96da560",
    "signature": "0xdeb478c67b126d4c501669749161c794701b9f39a288f4f8afdaa575141ea6ed0f30d78dc7c3048c80b16a14c72be12153a3c4ffdeb384920b60323502817d561b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}