{
  "manageEntity": {
    "action": "Save",
    "entityId": "807540133",
    "entityType": "Track",
    "nonce": "0x5330dc0d42f179f9b8450b119c5648b93dde26b5964906115bbf34640b214a9c",
    "signature": "0x34766c3738f435b0632f5da29e3709ec8bc5c331c7cfff59dc391450116dd79859b7edc40990ea656d8ec655734c0b880168addbaed0dc94366db078c4eb0d0d1b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}