{
  "manageEntity": {
    "action": "Save",
    "entityId": "937425068",
    "entityType": "Track",
    "nonce": "0x05ffc1fea60a4fd1af26c7c6cca3d3614eaff4baa6eecd53b065fbfe89e04537",
    "signature": "0x94ca6097382cffd5fa068f4e728a88a42f920d0b1113b6791889129aeb6d65725befa36359f4a2e4f0bc7076cc4609415e622456e613376b4f920acfef7ff8171c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}