{
  "manageEntity": {
    "action": "Save",
    "entityId": "1092469475",
    "entityType": "Track",
    "nonce": "0xbb42c26f5ea47153b563a0c4b692978b16669cef9d956c0c39c8da71996c5617",
    "signature": "0x5e6ad69f0b3ad64200d24a0ff1327f28d3ae5fc866edcd296f05d966d1ff95267d3cb6449e44f75c36e0859d3d6218adf53ace9080847ee154abfd76102dcd381c",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}