{
  "manageEntity": {
    "action": "Save",
    "entityId": "76860",
    "entityType": "Track",
    "nonce": "0xadc4ac5454065d2649fd4abb736e5f1c0281225a27c57beefae07a279d6dff51",
    "signature": "0x0d3357a431b7ede07e9a1c97123741340fc84a6bc5d0fe79d838bc4f6a1f9bee0f685b20cac18f96b0c5c7f0c87c2f7c487ed6586ccbade51cd689632baeed421c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}