{
  "manageEntity": {
    "action": "Save",
    "entityId": "1183966875",
    "entityType": "Track",
    "nonce": "0xce5ce06c3c133f5681fb4981115529c95e4cb64fd69a8e888ca859a921c2b571",
    "signature": "0x56b6da3ff5af36b91a7dcfbf6781b1f23dee69579c5349e65f9295a7f05fb2b80f3d8157de2560da1d130680dceae876133f6347656e59a788e807afcbcc212c1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}