{
  "manageEntity": {
    "action": "Save",
    "entityId": "2133796135",
    "entityType": "Track",
    "nonce": "1792302143272206586",
    "signature": "0xf7518224efdfc10372b835f5ae36030d195d1ad18bbfbf79e2f0b735eddaba50249216392d95569ed3b8bcb592e5cf270fad8fc20b0a5529ea850f4d509de9101c",
    "signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
    "userId": "827420993"
  }
}