{
  "manageEntity": {
    "action": "Save",
    "entityId": "2143259065",
    "entityType": "Track",
    "nonce": "0x52ca7f40060f0d9e57505c92f9a07f63e40539f81d5cd7998887090cdd3fa7f8",
    "signature": "0xd09a2c89a355d3f6a35a81603a96b1a3cc8138b423cd710b31b33e9a823cc4ce6fb0f225da47ecde479db42cf330efb206c428274c682527bf8a79485b5b4ed71b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}