{
  "manageEntity": {
    "action": "Save",
    "entityId": "1119026",
    "entityType": "Track",
    "nonce": "0x8866b2b5cda4580e30427b722a8b71915940af505f02bb2c769a583a40913580",
    "signature": "0x5c6b386ee3e8dace6435d31e01a681fbe58d3f28eff42fc824a24247ad1332f129d8e8ce28e3770b5aacc8a28e417969223367080132d16236b7ce390ddbc3f61c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}