{
  "manageEntity": {
    "action": "Save",
    "entityId": "1054794332",
    "entityType": "Track",
    "nonce": "0xcf685a482cacdf6c7b41a907705ffe70d11ef5c6fc3cf118ea44922aa4aab212",
    "signature": "0x2f6f4cca69cdfb77ccc644831fde5f4cc585cae90c634e3b44871092936a46f67fb96e2f28ab6ab5ef52a5b744521f073ff73106b9dee77b1bd2ce174a18a33f1b",
    "signer": "0x08825fAeCfa154aCBEBeB75e04841937cC55512c",
    "userId": "614652236"
  }
}