{
  "manageEntity": {
    "action": "Save",
    "entityId": "1106933044",
    "entityType": "Track",
    "nonce": "0x75ae7a8ebdffbb9d522eb0a916ec53c7feb7d096a8f1b7cd22e090dced8faecf",
    "signature": "0xc86bbff4eccc3c2b2db6bc86978c12cf585cf9c2650396a5c81650f20bfe86947c3d75323a682a6969b9abbafa35439a47af421eb9524eb3dc605de4a8009ae51b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}