{
  "manageEntity": {
    "action": "Save",
    "entityId": "988511067",
    "entityType": "Track",
    "nonce": "0xacaebb8aea1f19826e3078ab6c2e8948a8686033ba4f972daa6d88b8c8f98773",
    "signature": "0x5b16fca9651496ef0e8e795bb9372a1447b35b8612497e085125f178f5666c9327686f5603542a645fc0b06b4ee9484379c05a589fbdae5b17e92618fd9cb1c91b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}