{
  "manageEntity": {
    "action": "Save",
    "entityId": "1175155844",
    "entityType": "Track",
    "nonce": "0x8b449ef9383321a802b7c61023463cc24dda0d14a491e4434b6740b0b2eba319",
    "signature": "0x138a08a62be813f339de977bf6ce9dd5c60b342c94cd74563cee2f53fed9802e48895e15370ccd710bc1fb5784f47e6699be185f92a6febef6841e67f78177d41c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}