{
  "manageEntity": {
    "action": "Save",
    "entityId": "55832",
    "entityType": "Track",
    "nonce": "0xff40b021978c6a7c02a3c7e354ecf1e434bf24eed892aaf0c4189e09c9bb32b5",
    "signature": "0xa5f83e7c88a3b1f46d89f53fb834251af0088f999d9b714a98ca19f2f3f0db5d11d07fae2bad53eb06e0d3303855c8b53084f5b20b6b7dfb04a2eba9d08931301b",
    "signer": "0xAf1f176E32866fb97d822F6f5222061aF11ef652",
    "userId": "954117045"
  }
}