{
  "manageEntity": {
    "action": "Update",
    "entityId": "876735576",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa0302f7b1a5be87084904610189b8851607934024fc82eeb28d6e30b8abc9a87",
    "signature": "0xcb70c2b606050cb36e9695167ef627a438fa34a8ccb8ac08d4b034413ab8492e59fc4c6d0131bba35cef318e6cebec571006512db6f7878a2c9b0ad8da8a09aa1b",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}