{
  "manageEntity": {
    "action": "Save",
    "entityId": "1288634527",
    "entityType": "Track",
    "nonce": "0xd4553506f265b14047e5f28321ac4fdcce4ac3d25341dad6d848b42bfcf9b3b6",
    "signature": "0xa062e89f32b24333899e455c28c6ba551d08ebe65a35585c7b2bbbbf4765ef780458104f9083410c17cffce65d72750923e10eafe552af6441b64a18934b82e21c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}