{
  "manageEntity": {
    "action": "Save",
    "entityId": "82961685",
    "entityType": "Track",
    "nonce": "0x29aba39c7b8f595ed2bb648def9cea6ccd820662290891b4f7fc2eb8ec63837e",
    "signature": "0xdecc024e95538e12984aa749632623361f820392da85ccc314d7a22fc0dccee84a00463c5980992fe90bb09f54c04367ba43a7760c8109f9976b950cdf1fa53b1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}