{
  "manageEntity": {
    "action": "Save",
    "entityId": "97863",
    "entityType": "Track",
    "nonce": "0xfb7c4324f48b21bfc6c999ae16da701f372256ba6450aef9aa7963d825e23b8e",
    "signature": "0x17d50454e6fb061a821e41876aa0845071d4163c7c8aecf9bc7aef5cecc499d676d287d2d2b7fb0a96db013f93dcc3cd8363412d60a6bca3f558bac529499eec1c",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}