{
  "manageEntity": {
    "action": "Save",
    "entityId": "1130077439",
    "entityType": "Track",
    "nonce": "0x7063fdb5f866e40185224669a26690808997b1a59a622b50eff9032c269b4b78",
    "signature": "0x2e016e4dc6ae992b36aa949c9b3373d18f22cf6b4d6f16b54d20a9bd005af74347d060d9395455b8c825d7e17684cd94dd8b1c4ea0158f2f233b5071b37dfb141b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}