{
  "manageEntity": {
    "action": "Save",
    "entityId": "1846585789",
    "entityType": "Track",
    "nonce": "0xc68d2fcbe88bb733d64a17a83d2858bfadbfa3248ef0b9cd10eee0ca93315ee9",
    "signature": "0xe23c7530a2c7f2f3c3da2926fc692c6cdf79d417d036e7fdb48a466268d15ccd696d136a91b241f888a60ef477c8313f6ab2e2ccf902d4881b5669f6076c99b61c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}