{
  "manageEntity": {
    "action": "Save",
    "entityId": "1092811324",
    "entityType": "Track",
    "nonce": "0xa8d45ba9d842c11b05a599021629a530ca25a1dce5a8ecee9edff5581dea3c25",
    "signature": "0xd6d055edb728b6a257375cba52275ad9da0a3e740ad639942b69fd472ac77006427c146b2ea97074bda12d6cbc7ae53883a813d606d1b83730e23dd50b4025251b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}