{
  "manageEntity": {
    "action": "Save",
    "entityId": "960081",
    "entityType": "Track",
    "nonce": "0x6ad07dd84697a0218f89ce336a33b3029837d8731fa087c7ae3e956662689d29",
    "signature": "0x287e7e07d0dc383ac8e2df8286d59a3619d227b2241809fdb031af01eed70dde7c310b30d2fb54b521cf29098d865344c42965b65a7d3441f00739ec5a0f8de81c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}