{
  "manageEntity": {
    "action": "Save",
    "entityId": "204093",
    "entityType": "Track",
    "nonce": "0x9261dcc3efcc03ccffe5f1020c1a1c7bb730f54d2c591cc7802e882361b11aa3",
    "signature": "0x0dd8dc26b716c5d9b57a9eb1d3f253253da1aaeab0f3714a1de56eb02015b11e3cc7a255b84e72046766cc6a6de518cd36844b1232c6d99867fa1e23df9a27d31b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}