{
  "manageEntity": {
    "action": "Update",
    "entityId": "685507057",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7f55b62bee5124f33e29d56cbddfeeae1dbc5c04caae752ffb7f55f78d41531f",
    "signature": "0x93c26d9d6804e5de0f096f1c850b20b5a7456a5b96114c21c7982ff06f71dc870f8c77f1eb7f024d13b0680a8316f7b4317623e192537fd5e2849929040972771c",
    "signer": "0xaFd161d820E995347aA8EDC1F836F1ffc660729A",
    "userId": "685507057"
  }
}