{
  "manageEntity": {
    "action": "Save",
    "entityId": "341700",
    "entityType": "Track",
    "nonce": "0xdd58d843297c64e0e1a8a1b122671e20f8d0d6a7ea5b1e8d2cdaa3db4b883a38",
    "signature": "0x35fa27e2899df791efa288d329f1b31e1014ab2bad54dc52ff5e357d536d3e8f47d23dcf4cba87275b2c6e0ed231524ab796bb4b1585a8a9d23591a5340cd6621c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}