{
  "manageEntity": {
    "action": "Save",
    "entityId": "346317",
    "entityType": "Track",
    "nonce": "0x013f1b4c358c5f3d1ed86c4966f8160801a7be34798a008d1782b45e7e7ac75f",
    "signature": "0x441f8545faebbf54cc40cca5ed265189cd7d5108fba22b291e585d86e57484c6244cb095cfdc4bcaad2846b83a2d4382471d6cf2b9a39817513224b63a4bde3a1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}