{
  "manageEntity": {
    "action": "Save",
    "entityId": "795953349",
    "entityType": "Track",
    "nonce": "1790791736724522988",
    "signature": "0xca62ff0020df07670f574348e17eed0ab1c9872de109b33ba5bda00c664f077b7d452a737bc9797acb276d827eb4a75d979168cb4ca8cbb4cd928f23c969619e1b",
    "signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
    "userId": "827420993"
  }
}