{
  "manageEntity": {
    "action": "Save",
    "entityId": "88015",
    "entityType": "Track",
    "nonce": "0x471a46dadb80e92cf431222f8f935a3e9871595989edcf24a895f226c3417202",
    "signature": "0x853d3a233f25c5a73d79880d832fd05da992f107083204c0760b83f745c38cb74ad313d4847907c8b6c35eea3aa4972f563db5bf23acf353a1f9c53f18c2c9ae1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}