{
  "manageEntity": {
    "action": "Save",
    "entityId": "1065096255",
    "entityType": "Track",
    "nonce": "0xeb9193d69d0ac20bfc4f085a0d847fc53df6b8348c95578f836e4e9564db9a7b",
    "signature": "0x83a0a1500fe43edf1b421d59279af0b21a40ba832c8e3e3f74360259f04214a5449afd8b4b4bf2a7ebd4f02d2bdb17654843f32b7556888530ae4f9361b30fa41c",
    "signer": "0xbAdBF88a35ef36005fDD5ab7feC2d1561D200E55",
    "userId": "828403040"
  }
}