{
  "manageEntity": {
    "action": "Save",
    "entityId": "170793",
    "entityType": "Track",
    "nonce": "0xbb05a32b512ab187e755a506be9463d310a5aba492f54186d227748c49cc7884",
    "signature": "0xdc86fdda1980fff428ffb1a7965c892d48e141db055d33ae1adfeebd579666500a5b71c2e8242fbda01f8cea8c2d68dd547face4c6092cff75cad6bc3984b01e1c",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}