{
  "manageEntity": {
    "action": "Save",
    "entityId": "184731526",
    "entityType": "Track",
    "nonce": "0x0fbe82644f890e62b54a86de07a6abf62660e8dc07876031d62033af28a9d518",
    "signature": "0x65357c46601a5ede2f492e9ef66961a02e4fac3692d9c99fea401f482d3b977a05023b4d09316d37846e0ece4b8800235b4b1214b3150061d2201aa27ccc7a7a1b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}