{
  "manageEntity": {
    "action": "Save",
    "entityId": "2083846333",
    "entityType": "Track",
    "nonce": "0xead534b416e14871b91d19ceed5feb3d8ee0e1f54de7764fb52f5e79e9732fce",
    "signature": "0xcd6cf611240d0efaf55935c7c91a224f0eb7f080646b909b43e3e587a642e35e4620bd45cb898b2ac779496dd5663ac4426e4d148fec277a6951600bd34059721c",
    "signer": "0x69F4F3580e53002dD014EeE2b9480814A01b21eF",
    "userId": "719083727"
  }
}