{
  "manageEntity": {
    "action": "Save",
    "entityId": "1170297769",
    "entityType": "Track",
    "nonce": "0x9afff378ca0fe05ba64cdf220dec0c1ea961a06b7acb18685b0907afc49d5042",
    "signature": "0x63e9dabc6d446ed0859563743fb86b4b22fc24b10f9c2ac370544100844aaf914c6f2b8dad643a45fbdd8938677ee5093d56afe02c642d6d2e6a4f08e487b5c01c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}