{
  "manageEntity": {
    "action": "Save",
    "entityId": "36072",
    "entityType": "Track",
    "nonce": "0x5d983816793da4f8be62475333e866d0de097dfbc99f3bf8607fad7da4025113",
    "signature": "0x70ede6f0c1bea12ef16355d7b02a32bf0403724a69b3cbd7173cedc85ad4173324dc4e75ddf809a3001a91f749d03e827206352f95c54c06ce92f2221e25d0f41c",
    "signer": "0x3324C23609BC25902C39CFa38CF40581c7Bc7F87",
    "userId": "229134011"
  }
}