{
  "manageEntity": {
    "action": "Save",
    "entityId": "1136027",
    "entityType": "Track",
    "nonce": "0x8878810ef4c5c0fc206033632aa314396689151821ed83f312e667871597c96a",
    "signature": "0x02a199eeca1c209bccc8bc876e80ddbeb74163021aa81f7a15f0b9d79226692914c824bf292a3de203e5f380c8610192f9387b610c02b1563add01372d819e821b",
    "signer": "0xA66d5981794A5e084FBD9adBFF28F465924fb9a9",
    "userId": "980224167"
  }
}