{
  "manageEntity": {
    "action": "Save",
    "entityId": "36066",
    "entityType": "Track",
    "nonce": "0x117f6651ebde83101e9d84fae24e292e72b78835ec1986d97d8a4524e69a13aa",
    "signature": "0x7b31599eb992dceb1f96ed3df4d75b9d8d58a5644bd75f6b96dc5f3d49eb4bbc58a3202d37035f8ee6ee55b3763ea0332d455ffa682edaa1741622e5ab52bc2c1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}