{
  "manageEntity": {
    "action": "Save",
    "entityId": "51361",
    "entityType": "Track",
    "nonce": "0x903ca6c26beafb3aa250d3502f9b59880cb0075a865a6dff03d8a87794cf1308",
    "signature": "0x9ea54ea123bb9a0ba5fee91d04e99de54e293da810bde02f5f9c70efbbbf1e4e7890bd65d59129d1719c628ce1393840f686c2916874b10c2dcaf7541b409e841c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}