{
  "manageEntity": {
    "action": "Save",
    "entityId": "932293636",
    "entityType": "Track",
    "nonce": "0xac63b2f683333594196a0a831e125e797b155064a62a747ddaaa7d4d74dc5806",
    "signature": "0x1d5013d30314358c4e3e9c910ab86d5ebfa23a8de99f5b9d9875d7b090e6dcb0606ef21f99e545452b7596e7c5b46b04b95d400252e4dcf2505d43dfa97d574a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}