{
  "manageEntity": {
    "action": "Save",
    "entityId": "1790682032",
    "entityType": "Track",
    "nonce": "0x0c687bc7ab6bb3d1f610c938cfa7a81debeb2ba7f02fbff310c865c71c062289",
    "signature": "0x5fc4bdab02ba5611582ea4de4a0c3f5e7fcdb6086c9e3828675b92628197e4ab4fb12dcbead383509f3e1faba1729943ab7b5d85a868e32ded2f6d431c4448b61b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}