{
  "manageEntity": {
    "action": "Save",
    "entityId": "1093694",
    "entityType": "Track",
    "nonce": "0x593dc7d11260533ab8905fccfc5c9672b4c2292913f242eeed6a771d7f94c31f",
    "signature": "0xff63c1b7b8cb811eb2a8a193d7ffbb5304aca1a9ec99aeb36c4ea1d98361880a0bac9c1980152fff67529dbc34f9fd63513834e2a6e0c0f89bbe2932fa0da8fd1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}