{
  "manageEntity": {
    "action": "Save",
    "entityId": "402194730",
    "entityType": "Track",
    "nonce": "0x7b571dbd390a0c0b6b8abf680df0c196cb8919324ea5864df70bf33b90cd0e5e",
    "signature": "0x118734d419b9e25939bb390fd88e2d6a7b03fe2fb24ee51073980516b5856fb17e687ef03f31f0ae0a7fc12b0733b2a578bf614c9ab87938cfb44d6523a70d501b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}