{
  "manageEntity": {
    "action": "Save",
    "entityId": "61008",
    "entityType": "Track",
    "nonce": "0x8b451c075982ee2e2b1e2d5c5b32ec7dbd771235faa2e9a77057a8f0d09628ec",
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    "signer": "0x90CBf7c9BBF688fd9Fa4029B96e1BC32b270cA24",
    "userId": "711459379"
  }
}