{
  "manageEntity": {
    "action": "Save",
    "entityId": "782276002",
    "entityType": "Track",
    "nonce": "0x06630057b36b18bbf7fa0d86a679ddc6ab192d8820828b0158d9c4ac2258d867",
    "signature": "0xa20c4327036f87cad49f5483b9f421341880a71e46a7d97c1271f0adbc833b5924f5839530c29012686f624596d849a0fbbfcc6a78cd41843c429b7f2060e5ea1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}