{
  "manageEntity": {
    "action": "Update",
    "entityId": "179923362",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa1fc6d4f6ac9c9b50313f033925b74dbc49f09745fabe5826d3cd2a2694cc1a3",
    "signature": "0x6029d907ed92b41d1980398ed2c4a1c5ed796902e0c3ad40a73ff751484eac427e2ca52e8d62ad46bd94840bf01a863dd86ce31abc1c01f0e1901de1e14c1c221b",
    "signer": "0x43208F712e4C966c682c25Fde9F13346FE06522D",
    "userId": "179923362"
  }
}