{
  "manageEntity": {
    "action": "Save",
    "entityId": "711143737",
    "entityType": "Track",
    "nonce": "0xbc95809c0048b08d130d4bc9a12038da3fa2b1c321031b0d78e5304de7718198",
    "signature": "0x345a91e2797a1eb86b40f3fd97b71d9833e55a1c114b8a5f7e57bcbdf78ab83e5a26334d791bdb482cfe3fc6e9b2b21cb32c9e6c615b7f030ef663f407ec406b1b",
    "signer": "0x3324C23609BC25902C39CFa38CF40581c7Bc7F87",
    "userId": "229134011"
  }
}