{
  "manageEntity": {
    "action": "Save",
    "entityId": "794234087",
    "entityType": "Track",
    "nonce": "0x103a8fe1e64099c6ecbad45474e4ba9a29d7cccdcee0920d6b5cfbf4cf2b20d9",
    "signature": "0x7c8dba0921cac4c1a17277f5265f4141a6b224de4d1611a0a782156300cd8bef5011886b6526948b819eee825feaa9c3067b37d24c78b02538ce71cbebb4471d1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}