{
  "manageEntity": {
    "action": "Update",
    "entityId": "340701249",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x33ea7790b87dcf6a9ce3e06a39cd697d5cbbe31b1ef20b7cd07b858afe72d14a",
    "signature": "0x9ca15e2e3efac583e7fcb2973a51c513c80c29257f4e08e39420515f9fdf3ca37cca7b947d3bdfdb95710219772753d12d0a3627987503b49c00f6ff2d6beffd1c",
    "signer": "0xd05588C766feCBeD6dd4429a94F2ed6080276b91",
    "userId": "340701249"
  }
}