{
  "manageEntity": {
    "action": "Save",
    "entityId": "2056767785",
    "entityType": "Track",
    "nonce": "0xb7f0c5d457736abf2cbb01443c62203c337c4bcc69dded7bc3a0d44fb964c1ca",
    "signature": "0x2dae25bf4f7e03ca674e9f1b5731dee19b15f896a0e95f5aca1157d9bd9c3d1d065ba7d0f47e1573749ca5946a8d122527b4541f016c15288fba492a1db29e171c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}