{
  "manageEntity": {
    "action": "Update",
    "entityId": "254836537",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x881a38bbfa18e87440812db6b9838de31f42bfbbc6978fbc65af3d6bbf79a291",
    "signature": "0x9a2a96754d748050e5b92c8bfccd250c9eb55ac244fbf107c666eb85a6b081475336f0aa7fb2ee72c44d352e9d63f52dd2962f96e32f4f014ea0959e857456061c",
    "signer": "0xbfAE206f70d778Ab443F3942EA87145142a20a48",
    "userId": "254836537"
  }
}