{
  "manageEntity": {
    "action": "Save",
    "entityId": "996100670",
    "entityType": "Track",
    "nonce": "0xac985bcfdc7b643d9489b121c4c8facb962a50ba6b3f7876d6e6bd99be0a92c0",
    "signature": "0xc0e8b383fb8b2992008166ecc75be0bcee2e89e6cc86055e7dea7891b968167e6000749934be17e95a0e2e1384e408ec589f8199f5e55a90ab7f929c7a8271831c",
    "signer": "0xc03cf24b1C519dA6a18B6509c7F5C57d01620755",
    "userId": "870665506"
  }
}