{
  "manageEntity": {
    "action": "Save",
    "entityId": "1085334",
    "entityType": "Track",
    "nonce": "0xb46e00294a6edb5e3b6028c919a14024e8024755ae3682c06451ee34882619f4",
    "signature": "0xcf0c880b2ff6ff98198402dd7966011fdb914276fdf95eae6d47f5179b0e88a84dc2cf16997a35a8ff5486f756fcf7e7654ec487a8788e74162ae20f847e540e1c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}