{
  "manageEntity": {
    "action": "Update",
    "entityId": "208462349",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x63b4fe3dd02e622afae42e0e4df78d86e08ef782484688c7b65de6fe3cb0fb1b",
    "signature": "0x58494b08dedd8d91a7395dda16708b3dbe6dad2f64db1490055826756df256f378045f9ed2fc6e35156a6e108e0c83d2552f2177808e75f2a5cea4f18a391e5b1c",
    "signer": "0xCD23b5ae760853367a8773a7E36005e3E44cbcbC",
    "userId": "208462349"
  }
}