{
  "manageEntity": {
    "action": "Save",
    "entityId": "9275083",
    "entityType": "Track",
    "nonce": "0x680438485c8ddae4f85b44a80abf4027a7ee386854b5602a880893ec31696046",
    "signature": "0x927e1addb2b279d2c5d982452a0cafee8b02333baf426f325e7bc744a1c11cff0d3f40d4bf15721f362603681c950dde8b780986fa959fc356eb0ebf855dff661b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}