{
  "manageEntity": {
    "action": "Save",
    "entityId": "81135115",
    "entityType": "Track",
    "nonce": "0xcd0babb7cb90a71c0f53241d5088427567da4d7820cc20ac43837383ab42b290",
    "signature": "0xff44df4c76f5cac59d08a0d6c32d15c31861ea6dfa51712a9f056e0f912c89ea67aec39dbf14f75e61a68c2673919074684519a9edcaec8e477dc002c5c118d91b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}